16 May 2018

Announcing Windows 10 Insider Preview Build 17672

Author: Dona Sarkar
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Hello Windows Insiders!

Today, we are releasing Windows 10 Insider Preview Build 17672 (RS5) to Windows Insiders in the Fast ring in addition to those who opted in to Skip Ahead.

Microsoft Build 2018 Recap

We’re still reeling from how awesome the Microsoft Build conference was this year. Our team and our friends from Deployment, Feedback and Flighting manned Windows Insider booth all 3 days and circulated through the conference learning all the cool new tech. We had over 800 people come by our booth and we had the opportunity to share what’s next for the program AND learn what we can be doing better to create a better Insider program.

We also had the pleasure of having three of our most passionate Insiders as our guests.

Ange Uwambajimana, Irving Amukasa and Raymond Dillion were chosen to attend the conference and present on stage with us because of their impactful work using technologies in their local communities. Ange has created an IOT IV Drip solution to account for the lack of enough nurses in her home country of Rwanda who look after patients who are re-receiving. Her story is based on a near-tragedy involving her brother who suffers from epilepsy.  Irving has created SophieBot, a “Cortana for reproductive health questions” to account for the fact that in many parts of the world, talking about sexual and reproductive health is taboo.  Raymond is working to digitally transform Ireland, get them out of the paper records business AND grow the next generation of tech enthusiasts.

These Insiders had a chance to meet many of our upper management, including Satya! Satya asked them quite a few detailed questions about how they were using our tech, what more we could do to make it easier to use. The best moment was when THEY started asking Satya some hard questions about AI. Each of the Insiders walked away with homework too.

We had three sessions talking about the benefits of being an Insider and a developer.

  • Insiders <3 Enterprise Apps where we talked about WIP and Windows Analytics are a natural fit. No longer do enterprise devs need to test their applications against the most compatible version of Windows ever. Instead, they can use the AWESOME tools that Microsoft has provided including Windows Analytics and Windows Desktop Application Program. Here’s how anyone can use Device Health from Windows Analytics to make sure their applications will be ready for RS5. Watch the session here.
  • If (dev) { Insider();} where we showcased how any Windows app dev can run their own Insider program using:
  • Turning Good Code into a Great Business where our three Insiders shared their stories AND we unveiled the opportunity for any dev (or aspiring dev) Insider seeking career advice to sign up for the new private Code to Biz forum where you can get advice from our three featured Insiders, Insiders from all over the world AND our team on how to create a successful business with your code. Watch the session here.

MANY Insiders have said they would love to see the best of Microsoft Build AND meet our team, so we’re making it happen. In partnership with the Developer Marketing and the Partner App Experience teams, we also announced the upcoming month-long Insider Dev Tour where we will be showcasing the best of Microsoft Build on the road in over 20 cities. In many of these cities, we’ll be doing a pre-event mixer to meet as many of you as possible. Join us!

What’s new in Build 17672

Windows Security Improvements

The Windows Security Center (WSC) service now requires antivirus products to run as a protected process to register. Products that have not yet implemented this will not appear in the Windows Security UI, and Windows Defender Antivirus will remain enabled side-by-side with these products.

For testing purposes, you can disable this new behavior in Windows Insider builds by creating the following registry key and rebooting the device.  This key will be removed as we get closer to release.

HKLMSOFTWAREMicrosoftSecurity CenterFeature
DisableAvCheck (DWORD) = 1

General changes, improvements, and fixes for PC

  • We fixed the issue causing PCs to appear stuck at “Preparing to install…” somewhere between the 80%-100% in Windows Update when attempting to install a new build.  
  • We fixed an issue where right-clicking to copy text in Microsoft Edge didn’t work in recent flights.
  • We fixed an issue with structuredquery.dll resulting some users experiencing a cyclical explorer.exe crash.
  • We fixed an issue resulting in the two-finger gesture to dismiss all notifications not working in the Action Center.
  • We fixed an issue resulting in the Korean IME sometimes entering duplicate characters when typing into text fields in certain websites in Microsoft Edge.
  • You can now refresh the Books pane in Microsoft Edge using a pull gesture.
  • When you pin books to Start from Microsoft Edge you will now see a live tile that cycles between the book cover and your current completion progress.
  • When printing PDFs from Microsoft Edge, you’ll find a new option to choose the scale of your print out (Actual size, or Fit to page).
  • We’ve updated Timeline so that in addition to seeing the number of available tabs to restore associated with a particular Sets activity, you can now cycle through them.
  • We’ve made some adjustments to improve the quality of audio when recording clips using the game bar (WIN+G). Thanks, everyone who shared feedback about this – please take a moment to try it out in today’s build and let us know how it goes.
  • We fixed an issue that could result in apps sometimes not fully maximizing to the top of the screen.
  • We fixed an issue resulting in certain devices not being able to wake from sleep in the last two flights (just showed a black screen).
  • When you hover over the leaf icon in Task Manager’s Status column, you will now see a tooltip describing what it means (this app is suspending processes to help improve system performance).
  • Building on our work from Build 17639, in addition to showing Bluetooth battery level in Settings for supported devices, you will now see a notification when one of those devices is low on battery.
  • For our WSL fans out there: if you’ve enabled WSL, you’ll now see an option to “Open Linux Shell here” when you Shift + Right-click on the whitespace of a File Explorer folder.
  • We’ve introduced preview support for same-site cookies in Microsoft Edge and Internet Explorer 11.

Known issues

  • After completing the Windows Mixed Reality First Run experience, OOBE is black. Motion Controllers are also not recognized in exclusive apps. If you need your Mixed Reality experience to be working it is advised you not take this build until these issues are fixed.
  • We’re aware of an issue that causes Narrator to read extra text when invoking Alt + Tab, and we’re working on a fix.
  • If you complete the setup for a Windows Mixed Reality headset on this build, the headset will remain black until it is unplugged and reconnected to the PC.
  • We’re making progress on our work to support dark theme in File Explorer and the Common File Dialog, and you’ll see improvements in this build, but we still have some work to do.
  • Insiders who use Remote Desktop, project their screen or have multiple monitors may experience explorer.exe hangs on this build. This issue can also lead to Microsoft Edge hangs.
  • ADDED: Please note that there is a known issue in this Windows Insider build that prevents the user from enabling Developer Mode through the For developers settings page. Unfortunately, this means that you will not be able to remotely deploy a UWP application to your PC or use Windows Device Portal on this build. There are no known workarounds at the moment. Please skip this flight if you rely on these features

Known issues for Sets & Office

  • Sets UX for Office Win32 desktop apps is not final.  The experience will be refined over time based on feedback.
  • The top of some Win32 desktop app windows may appear slightly underneath the tab bar when created maximized. To work around the issue, restore and re-maximize the window.
  • Closing one tab may sometimes minimize the entire set.
  • Tiling and cascading windows, including features like “View Side by Side” in Word, will not work for inactive tabs.
  • The Office Visual Basic Editor window will currently be tabbed but is not intended to be in the future.
  • Opening an Office document while the same app has an existing document open may cause an unintended switch to the last active document. This will also happen when closing a sheet in Excel while other sheets remain open.
  • Local files or non-Microsoft cloud files will not be automatically restored, and no error message will be provided to alert the user to that fact.

Insider Community

Check out the winners of the latest Insiders in Action contest! Read about their breakthrough solution, a potentially game-changing tool in the fight against the world’s trash problem–powered by solar and built on Windows.

Additionally, we wanted to let you know that Jason and Brandon will be hitting the road and stopping by the Frisco, TX Microsoft Store for a small Windows Insider meet-up! If you’re in the area – you should stop by.

No downtime for Hustle-As-A-Service,
Dona <3

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15 May 2018
15 May 2018

Windows 10 SDK Preview Build 17666 now available!

Author: Clint Rutkas
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Today, we released a new Windows 10 Preview Build of the SDK to be used in conjunction with Windows 10 Insider Preview (Build 17666 or greater). The Preview SDK Build 17666 contains bug fixes and under development changes to the API surface area.

The Preview SDK can be downloaded from developer section on Windows Insider.

For feedback and updates to the known issues, please see the developer forum. For new developer feature requests, head over to our Windows Platform UserVoice.

Things to note:

  • This build works in conjunction with previously released SDKs and Visual Studio 2017. You can install this SDK and still also continue to submit your apps that target Windows 10 Creators build or earlier to the Store.
  • The Windows SDK will now formally only be supported by Visual Studio 2017 and greater. You can download the Visual Studio 2017 here.
  • This build of the Windows SDK will install on Windows 10 Insider Preview and supported Windows operating systems.

Known Issues

Installation on an operating system that is not a Windows 10 Insider Preview build is not supported and may fail.

The contract Windows.System.SystemManagementContract is not included in this release. In order to access the following APIs, please use a previous Windows IoT extension SDK with your project.

This bug will be fixed in a future preview build of the SDK.

The following APIs are affected by this bug:

namespace Windows.Services.Cortana {
  public sealed class CortanaSettings     
namespace Windows.System {
  public enum AutoUpdateTimeZoneStatus
  public static class DateTimeSettings
  public enum PowerState
  public static class ProcessLauncher
  public sealed class ProcessLauncherOptions
  public sealed class ProcessLauncherResult
  public enum ShutdownKind
  public static class ShutdownManager
  public struct SystemManagementContract
  public static class TimeZoneSettings

API Spot Light:

Check out LauncherOptions.GroupingPreference.

namespace Windows.System {
  public sealed class FolderLauncherOptions : ILauncherViewOptions {
    ViewGrouping GroupingPreference { get; set; }
  public sealed class LauncherOptions : ILauncherViewOptions {
    ViewGrouping GroupingPreference { get; set; }

This release contains the new LauncherOptions.GroupingPreference property to assist your app in tailoring its behavior for Sets. Watch the presentation here.

What’s New:


We’ve made some important changes to the C/C++ ETW code generation of mc.exe (Message Compiler):

The “-mof” parameter is deprecated. This parameter instructs MC.exe to generate ETW code that is compatible with Windows XP and earlier. Support for the “-mof” parameter will be removed in a future version of mc.exe.

As long as the “-mof” parameter is not used, the generated C/C++ header is now compatible with both kernel-mode and user-mode, regardless of whether “-km” or “-um” was specified on the command line. The header will use the _ETW_KM_ macro to automatically determine whether it is being compiled for kernel-mode or user-mode and will call the appropriate ETW APIs for each mode.

  • The only remaining difference between “-km” and “-um” is that the EventWrite[EventName] macros generated with “-km” have an Activity ID parameter while the EventWrite[EventName] macros generated with “-um” do not have an Activity ID parameter.

The EventWrite[EventName] macros now default to calling EventWriteTransfer (user mode) or EtwWriteTransfer (kernel mode). Previously, the EventWrite[EventName] macros defaulted to calling EventWrite (user mode) or EtwWrite (kernel mode).

  • The generated header now supports several customization macros. For example, you can set the MCGEN_EVENTWRITETRANSFER macro if you need the generated macros to call something other than EventWriteTransfer.
  • The manifest supports new attributes.
    • Event “name”: non-localized event name.
    • Event “attributes”: additional key-value metadata for an event such as filename, line number, component name, function name.
    • Event “tags”: 28-bit value with user-defined semantics (per-event).
    • Field “tags”: 28-bit value with user-defined semantics (per-field – can be applied to “data” or “struct” elements).
  • You can now define “provider traits” in the manifest (e.g. provider group). If provider traits are used in the manifest, the EventRegister[ProviderName] macro will automatically register them.
  • MC will now report an error if a localized message file is missing a string. (Previously MC would silently generate a corrupt message resource.)
  • MC can now generate Unicode (utf-8 or utf-16) output with the “-cp utf-8” or “-cp utf-16” parameters.

API Updates and Additions

When targeting new APIs, consider writing your app to be adaptive in order to run correctly on the widest number of Windows 10 devices. Please see Dynamically detecting features with API contracts (10 by 10) for more information.

The following APIs have been added to the platform since the release of 17134.

namespace Windows.ApplicationModel {
  public sealed class AppInstallerFileInfo
  public sealed class LimitedAccessFeatureRequestResult
  public static class LimitedAccessFeatures
  public enum LimitedAccessFeatureStatus
  public sealed class Package {
    IAsyncOperation<PackageUpdateAvailabilityResult> CheckUpdateAvailabilityAsync();
    AppInstallerFileInfo GetAppInstallerFileInfo();
  public enum PackageUpdateAvailability
  public sealed class PackageUpdateAvailabilityResult
namespace Windows.ApplicationModel.Calls {
  public sealed class VoipCallCoordinator {
    IAsyncOperation<VoipPhoneCallResourceReservationStatus> ReserveCallResourcesAsync();
namespace Windows.ApplicationModel.Store.Preview.InstallControl {
  public enum AppInstallationToastNotificationMode
  public sealed class AppInstallItem {
    AppInstallationToastNotificationMode CompletedInstallToastNotificationMode { get; set; }
    AppInstallationToastNotificationMode InstallInProgressToastNotificationMode { get; set; }
    bool PinToDesktopAfterInstall { get; set; }
    bool PinToStartAfterInstall { get; set; }
    bool PinToTaskbarAfterInstall { get; set; }
  public sealed class AppInstallManager {
    bool CanInstallForAllUsers { get; }
  public sealed class AppInstallOptions {
    AppInstallationToastNotificationMode CompletedInstallToastNotificationMode { get; set; }
    bool InstallForAllUsers { get; set; }
    AppInstallationToastNotificationMode InstallInProgressToastNotificationMode { get; set; }
    bool PinToDesktopAfterInstall { get; set; }
    bool PinToStartAfterInstall { get; set; }
    bool PinToTaskbarAfterInstall { get; set; }
    bool StageButDoNotInstall { get; set; }
  public sealed class AppUpdateOptions {
    bool AutomaticallyDownloadAndInstallUpdateIfFound { get; set; }
namespace Windows.Devices.Enumeration {
  public sealed class DeviceInformationPairing {
    public static bool TryRegisterForAllInboundPairingRequestsWithProtectionLevel(DevicePairingKinds pairingKindsSupported, DevicePairingProtectionLevel minProtectionLevel);
namespace Windows.Devices.Lights {
  public sealed class LampArray
  public enum LampArrayKind
  public sealed class LampInfo
  public enum LampPurpose : uint
namespace Windows.Devices.Sensors {
  public sealed class SimpleOrientationSensor {
    public static IAsyncOperation<SimpleOrientationSensor> FromIdAsync(string deviceId);
    public static string GetDeviceSelector();
namespace Windows.Devices.SmartCards {
  public static class KnownSmartCardAppletIds
  public sealed class SmartCardAppletIdGroup {
    string Description { get; set; }
    IRandomAccessStreamReference Logo { get; set; }
    ValueSet Properties { get; }
    bool SecureUserAuthenticationRequired { get; set; }
  public sealed class SmartCardAppletIdGroupRegistration {
    string SmartCardReaderId { get; }
    IAsyncAction SetPropertiesAsync(ValueSet props);
namespace Windows.Devices.WiFi {
  public enum WiFiPhyKind {
    He = 10,
namespace Windows.Media.Core {
  public sealed class MediaStreamSample {
    IDirect3DSurface Direct3D11Surface { get; }
    public static MediaStreamSample CreateFromDirect3D11Surface(IDirect3DSurface surface, TimeSpan timestamp);
namespace Windows.Media.Devices.Core {
  public sealed class CameraIntrinsics {
    public CameraIntrinsics(Vector2 focalLength, Vector2 principalPoint, Vector3 radialDistortion, Vector2 tangentialDistortion, uint imageWidth, uint imageHeight);
namespace Windows.Media.Streaming.Adaptive {
  public enum AdaptiveMediaSourceResourceType {
    MediaSegmentIndex = 5,
namespace Windows.Security.Authentication.Web.Provider {
  public sealed class WebAccountProviderInvalidateCacheOperation : IWebAccountProviderBaseReportOperation, IWebAccountProviderOperation
  public enum WebAccountProviderOperationKind {
    InvalidateCache = 7,
  public sealed class WebProviderTokenRequest {
    string Id { get; }
namespace Windows.Security.DataProtection {
  public enum UserDataAvailability
  public sealed class UserDataAvailabilityStateChangedEventArgs
  public sealed class UserDataBufferUnprotectResult
  public enum UserDataBufferUnprotectStatus
  public sealed class UserDataProtectionManager
  public sealed class UserDataStorageItemProtectionInfo
  public enum UserDataStorageItemProtectionStatus
namespace Windows.Services.Cortana {
  public sealed class CortanaActionableInsights
  public sealed class CortanaActionableInsightsOptions
namespace Windows.Services.Store {
  public sealed class StoreContext {
    IAsyncOperation<StoreRateAndReviewResult> RequestRateAndReviewAppAsync();
  public sealed class StoreRateAndReviewResult
  public enum StoreRateAndReviewStatus
namespace Windows.Storage.Provider {
  public enum StorageProviderHydrationPolicyModifier : uint {
    AutoDehydrationAllowed = (uint)4,
namespace Windows.System {
  public sealed class FolderLauncherOptions : ILauncherViewOptions {
    ViewGrouping GroupingPreference { get; set; }
  public sealed class LauncherOptions : ILauncherViewOptions {
    ViewGrouping GroupingPreference { get; set; }
namespace Windows.UI.Composition {
  public enum CompositionBatchTypes : uint {
    AllAnimations = (uint)5,
    InfiniteAnimation = (uint)4,
  public sealed class CompositionGeometricClip : CompositionClip
  public sealed class Compositor : IClosable {
    CompositionGeometricClip CreateGeometricClip();
namespace Windows.UI.Notifications {
  public sealed class ScheduledToastNotification {
    public ScheduledToastNotification(DateTime deliveryTime);
    IAdaptiveCard AdaptiveCard { get; set; }
  public sealed class ToastNotification {
    public ToastNotification();
    IAdaptiveCard AdaptiveCard { get; set; }
namespace Windows.UI.Shell {
  public sealed class TaskbarManager {
    IAsyncOperation<bool> IsSecondaryTilePinnedAsync(string tileId);
    IAsyncOperation<bool> RequestPinSecondaryTileAsync(SecondaryTile secondaryTile);
    IAsyncOperation<bool> TryUnpinSecondaryTileAsync(string tileId);
namespace Windows.UI.StartScreen {
  public sealed class StartScreenManager {
    IAsyncOperation<bool> ContainsSecondaryTileAsync(string tileId);
    IAsyncOperation<bool> TryRemoveSecondaryTileAsync(string tileId);
namespace Windows.UI.ViewManagement {
  public sealed class ApplicationView {
    bool IsTabGroupingSupported { get; }
  public sealed class ApplicationViewTitleBar {
    void SetActiveIconStreamAsync(RandomAccessStreamReference activeIcon);
  public enum ViewGrouping
  public sealed class ViewModePreferences {
    ViewGrouping GroupingPreference { get; set; }
namespace Windows.UI.ViewManagement.Core {
  public sealed class CoreInputView {
    bool TryHide();
    bool TryShow();
    bool TryShow(CoreInputViewKind type);
  public enum CoreInputViewKind
namespace Windows.UI.Xaml.Controls {
  public class NavigationView : ContentControl {
    bool IsTopNavigationForcedHidden { get; set; }
    NavigationViewOrientation Orientation { get; set; }
    UIElement TopNavigationContentOverlayArea { get; set; }
    UIElement TopNavigationLeftHeader { get; set; }
    UIElement TopNavigationMiddleHeader { get; set; }
    UIElement TopNavigationRightHeader { get; set; }
  public enum NavigationViewOrientation
  public sealed class PasswordBox : Control {
    bool CanPasteClipboardContent { get; }
    public static DependencyProperty CanPasteClipboardContentProperty { get; }
    void PasteFromClipboard();
  public class RichEditBox : Control {
    RichEditTextDocument RichEditDocument { get; }
  public sealed class RichTextBlock : FrameworkElement {
    void CopySelectionToClipboard();
  public class SplitButton : ContentControl
  public sealed class SplitButtonClickEventArgs
  public enum SplitButtonOrientation
  public sealed class TextBlock : FrameworkElement {
    void CopySelectionToClipboard();
  public class TextBox : Control {
    bool CanPasteClipboardContent { get; }
    public static DependencyProperty CanPasteClipboardContentProperty { get; }
    bool CanRedo { get; }
    public static DependencyProperty CanRedoProperty { get; }
    bool CanUndo { get; }
    public static DependencyProperty CanUndoProperty { get; }
    void CopySelectionToClipboard();
    void CutSelectionToClipboard();
    void PasteFromClipboard();
    void Redo();
    void Undo();
  public sealed class WebView : FrameworkElement {
    event TypedEventHandler<WebView, WebViewWebResourceRequestedEventArgs> WebResourceRequested;
  public sealed class WebViewWebResourceRequestedEventArgs
namespace Windows.UI.Xaml.Controls.Primitives {
  public class FlyoutBase : DependencyObject {
    FlyoutShowMode ShowMode { get; set; }
    public static DependencyProperty ShowModeProperty { get; }
    public static DependencyProperty TargetProperty { get; }
    void Show(FlyoutShowOptions showOptions);
  public enum FlyoutPlacementMode {
    BottomLeftJustified = 7,
    BottomRightJustified = 8,
    LeftBottomJustified = 10,
    LeftTopJustified = 9,
    RightBottomJustified = 12,
    RightTopJustified = 11,
    TopLeftJustified = 5,
    TopRightJustified = 6,
  public enum FlyoutShowMode
  public sealed class FlyoutShowOptions : DependencyObject
namespace Windows.UI.Xaml.Hosting {
  public sealed class XamlBridge : IClosable
namespace Windows.UI.Xaml.Markup {
  public sealed class FullXamlMetadataProviderAttribute : Attribute

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15 May 2018

Announcing Windows Server 2019 Insider Preview Build 17666

Author: Dona Sarkar
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Hello Windows Insiders!

Today we are pleased to release a new build of the Windows Server vNext Long-Term Servicing Channel (LTSC) release that contains both the Desktop Experience as well as Server Core in all 18 server languages, as well as a new build of the next Windows Server Semi-Annual Channel release.

There are two major areas that we would like you to try out in each preview release and report back any issues:

  • In-place OS Upgrade (from Windows Server 2012 R2, Windows Server 2016)
  • Application compatibility – please let us know if any server roles or applications stops working or fails to function as it used to

What’s New in the Latest Build

Click here to see the full list of new features introduced in earlier builds.

Performance history for Storage Spaces Direct

This build improves the Get-ClusterPerformanceHistory cmdlet to be more scripting-friendly. It’s now convenient to pipe performance history into utility cmdlets like Sort-Object, Where-Object, and Measure-Object so you can quickly find the average or peak value, filter values, plot trend lines, run outlier detection, and more. You can see examples with these cmdlets in the topics linked under “Insider Preview content” on aka.ms/StorageSpacesDirect.

This build adds performance history for the Storage Spaces Direct cache for reads (% hit rate) and writes (% full), as well as the CSV in-memory read cache (% hit rate). These new series are available per-server and in aggregate.

Some performance history series have changed names in this build for greater clarity and consistency—for example, Node.Cpu.Usage is now ClusterNode.Cpu.Usage. Note that this change will result in some blank charts in Windows Admin Center until its next update.

Delimit volume allocation with Storage Spaces Direct

New cmdlets, provided in this build, simplify the management of volumes with delimited allocation. Use Get-StorageScaleUnit to see fault domains; follow associations to/from Get-VirtualDisk to see the current allocation; and set or modify allocation by using friendly names for fault domains. For more details, see the links under “Insider Preview content” on aka.ms/StorageSpacesDirect.

Available Content

Windows Server 2019 Preview is available in ISO format in 18 languages, and in VHDX format in English only. This build and all future pre-release builds will require the use of activation keys during setup. The following keys allow for unlimited activations:

Datacenter Edition  6XBNX-4JQGW-QX6QG-74P76-72V67
Standard Edition  MFY9F-XBN2F-TYFMP-CCV49-RMYVH

Windows Server vNext Semi-Annual Preview The Server Core Edition is available in English only, in ISO or VHDX format. The images are pre-keyed –  no need to enter a key during setup.

Symbols are available on the public symbol server – see Update on Microsoft’s Symbol Server blog post and Using the Microsoft Symbol Server. As before, matching Windows Server container images will be available via Docker Hub. For more information about Windows Server containers and Insider builds, click here.

This build will expire December 14th, 2018.

How to Download 

To obtain the Insider software downloads, registered Insiders may navigate directly to the Windows Server Insider Preview download page.  If you have not yet registered as an Insider, see GETTING STARTED WITH SERVER on the Windows Insiders for Business portal.

We value your feedback!

Use your registered Windows 10 Insider device and use the Feedback Hub application. In the app, choose the Server category and then the appropriate subcategory for your feedback. Please indicate what build number you are providing feedback on. We also encourage you to visit the Windows Server Insiders space on the Microsoft Tech Communities forum to collaborate, share and learn from experts.

Known Issues

The size of a file according to NTFS and a stream control block can become different from the size according to Cache Manager. This might cause a bug check if a read operation is out of bounds for the file size that Cache Manager has stored.

Inplace OS upgrade: Domain Controllers. During an in-place OS upgrade, Active Directory (AD) Domain Controllers (DC) might not be upgraded correctly. So, back up any AD DCs before performing an in-place OS upgrade.

Editing or creating policies for AppLocker can cause the MMC snap-in to crash when generated rules for a packaged app.

After upgrading the operating system, the AppX database may have corrupted entries, which causes problems for components that use those entries.

Terms of Use

This is pre-release software – it is provided for use “as-is” and is not supported in production environments. Users are responsible for installing any updates made available from Windows Update for as long as this build is available   All pre-release software made available to you via the Windows Server Insider Program are governed by the Insider Terms of Use, which takes precedence over any license agreement that may be in the product.

No downtime for Hustle-As-A-Service,
Dona <3

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15 May 2018

Trends in the workplace—white paper on the cultural transformation

Author: the Microsoft 365 team
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Digital transformation is reshaping our global economy, including the way people work individually and in teams. As companies seek to empower people to do their best work, a cultural transformation isn’t just inevitable—it’s essential. Microsoft is partnering with customers to foster a modern workplace that is productive, responsive, creative, and secure. To learn more, read the white paper “New Culture of Work.”

The post Trends in the workplace—white paper on the cultural transformation appeared first on Microsoft 365 Blog.

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15 May 2018

Announcing the Insider Dev Tour 2018!

Author: Pete Brown
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Insider Dev Tour Logo

Hello friends!

Yes, the rumor-mill was right (this time!). It’s time for the Insider Dev Tour.

Each year after Build, we run a world-wide event tour to bring all the latest technology to you, in person. This year we’ve extended the event to even more locations through our partnerships with Windows, the Windows Insider program, and our developer and Insider MVPs.

The Insider Dev Tour is for developers and code curious folks interested in building intelligent experiences today using the latest Microsoft technologies. It’s also for those who want a peek into the future of what kinds of tech will be super-important in every industry. This event is open to anyone who can read code or WANTS to read code– beginner, expert, student, or hobbyist developer.

You’ll learn about Artificial Intelligence, the latest for desktop development, Microsoft 365, Progressive Web Apps, Office for developers, mixed reality, Microsoft Graph, and much more. You’ll learn little-known tricks and tips that will help you be more efficient and awesome in your careers, no matter what those careers might be.

The tour is an opportunity to connect directly with leads and engineers from Redmond, as well as regional industry leads and Microsoft Developer MVPs. We’re excited to meet you in person.

The event agenda and session details are all posted on the registration site. We hope to see you there!

Find your local city and Register Now! 

Thank you—and see you there!

Pete & Dona


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15 May 2018

Unlocking the power of the team with Surface Hub 2

Author: the Microsoft 365 team
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Today we’re previewing the new Surface Hub 2, built from the ground up with Microsoft Teams in mind. More flexible and powerful than its predecessor, the Surface Hub 2 is designed to fit any workspace or work style. Head over to the Windows blog for all the details.

The post Unlocking the power of the team with Surface Hub 2 appeared first on Microsoft 365 Blog.

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15 May 2018

Meet Surface Hub 2

Author: Panos Panay
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A new culture of work is emerging. One where unlocking the power of the team has never been more important. I see it with our team daily. People coming together, creating together. Making products stronger through collaboration, whether they’re in the same room or separated by thousands of miles.

Three people working with four Surface Hub 2 displays

Today’s most effective businesses have a team-based, collaborative culture and place an emphasis on enabling creativity and productivity. In fact, companies that promote collaborative working are five times as likely to be high-performing.

It’s not just that how we work is changing, it’s that where we work is changing too. The environment around us is shifting – towards open offices, huddle rooms, and team work spaces – in fact, in three years, half the global workforce will be mobile. It’s an exciting time to be in the devices business, because the creation of new form factors and software experiences will not only lead us to work in new ways, but also in new spaces designed for collaboration.

There is a need for a device built for teams and designed for these new environments. To help people collaborate whether they are in the office, at home, or travelling the world. To move beyond just passing along information, to a world where they are collaborating real-time, in an efficient, and intuitive way.

Today, I’m excited to introduce that device, the next generation – Surface Hub 2.

Unlock the power of the team

Surface Hub 2 was designed from the ground up to be used by teams – to get people out of their seats, to connect and ideate, regardless of location. The new Surface Hub 2 is sleeker, more agile and more affordable to fit any workspace or work style. The gorgeous 4K+ 50.5” multi-touch display creates an inviting canvas to co-create, harnessing the power of Microsoft Teams, Microsoft Whiteboard, Office 365, Windows 10 and the intelligent cloud. The 4K cameras that rotate with the device, integrated speakers and far field mic arrays allow everyone in the meeting to feel as if they are right in the room with the rest of the group, while our standard Surface 3×2 aspect ratio means everyone has more usable space to create and collaborate.

Perfect for any space

Surface Hub 2 scales and adapts to your space through tiling up to 4 screens together in portrait or landscape view.  Dynamic rotation allows you to use the best orientation for your content to help people work in the way that best suits them and the people they are collaborating with. It is also significantly easier to move around your workspaces than its predecessor. We’ve teamed up with workplace expert Steelcase to create a system of rolling stands and easy-to-use mounts to help Surface Hub 2 customers be truly mobile, gain a new perspective and capture their ideas wherever they do their best work.

Surface Hub 2 in landscape view

The magic of tiling

Tiling is one of my favorite features on Surface Hub 2. Seeing four of the beautiful Surface Hub 2s lined up together has undeniable visual effect and will have a profound impact on what groups can accomplish together, allowing users to display multiple pieces of content side-by-side. Imagine how much your team could get done being able to work simultaneously across Microsoft Whiteboard, PowerBI, PowerPoint, and a full view video call.

Move beyond meetings, to real-time teamwork

We’re passionate about creating experiences that allow the technology to fade into the background, so people and teams can be as productive and creative as possible. The original Surface Hub advanced this mission, making it possible to join a meeting or open a whiteboard with one touch. Now Surface Hub 2 takes it even further with multi-user sign in.

This feature is a truly magical experience. Using multi-user sign in, multiple people can authenticate in the same Surface Hub 2 workspace, allowing them to simultaneously access their documents and ideas, merging them with the ideas of their teammates – and making collaboration as natural as meeting at a whiteboard.

Two people in an office with Surface Hub 2 and Surface Laptop

The future of collaboration is coming

We started on the journey of empowering teams with the original Surface Hub and the value it provides has resonated with businesses worldwide. We’ve sold to more than 5000 customers across 25 markets. Over half of Fortune 100 companies have purchased Surface Hubs to improve team’s efficiency and how they collaborate breaking down barriers and creating real business value. We believe our customers will love Surface Hub 2 even more.

In 2018 we will begin to test Surface Hub 2 with select commercial customers. It will be available for purchase in 2019. For additional information on Surface Hub 2 please visit: microsoft.com/en-us/surface/business/surface-hub-2

We’ll share more soon.

Meet Surface Hub 2

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15 May 2018

Announcing the General Availability of Native Ads & Preview of Microsoft Ad mediation for Android developers

Author: Vijay Rajagopalan
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It has been about an year since the last Microsoft Build conference where we announced the Microsoft ad monetization platform – a server-side ad mediation platform from Microsoft that helps app publishers & web sites to maximize their ad revenue globally through innovative ad experiences & one stop shop integration, analytics & payout experiences in Windows Dev Center. It’s amazing to reflect on the progress we’ve already made in partnership with the developer ecosystem & Microsoft 1st Party publishers like Xbox, Xbox Casual Games and Mixer. We are happy to share several new and exciting announcements for the developer ecosystem to accelerate their monetization opportunities.

Windows developer ad monetization progress report

One of the key promises of the Ad monetization platform has been to help improve ad yield i.e. revenue per impression. Better Ad yield is a function of advertiser ROI i.e. advertisers bid more if they see higher value for the impression. One of the ways to improve the yield is through diverse set of advertisers participating in the bidding process. We’re happy to report that we have added many high-quality ad partners (typically these are advertising platforms where many advertisers bid on inventory) such as Taboola, Outbrain and Revcontent to serve demand on our ad inventory and have more ad partners across key markets participating in the upcoming months. Thanks in part to this, we are pleased that the total developer ad revenue for the July-December period has grown by 35% YoY. Ad yield for Windows developers on the UWP platform has more than doubled over the last year due to addition of strategic ad partners as well as our programmatic evangelism efforts like creation of the Windows Premium Ads Publisher program etc.

Ad partners that currently serve across ad formats for UWP developers

Figure 1: Ad partners that currently serve across ad formats for UWP developers

We are also very excited to announce the addition of a new ad partner, called “MSN Content Recommendations” to deliver Ads on banner and Native placements. Users will get to see Ads with rich content from MSN across several different verticals such as finance, health and fitness, lifestyle etc. The addition of this Ad partner will further help improve the fill rates for banner ad content toward 100%.

Competition between Ad partners augurs well for developers as there are more contenders for delivering quality ads, automatically improving yield for developers in the marketplace. We have made noteworthy progress with our machine learning algorithms which optimize every ad request in real time to maximize revenue for the developer. For every ad unit that is set to “Auto” optimization, we send each ad request to the most optimal configuration of ad networks chosen based on the app in context, user and device signals and past performance of each ad network on that ad unit. We’re happy to note that our improved algorithms have generated a 20% improvement in Ad click through rates and 15% improvement in RPM (revenue per thousand impressions) compared to the prior model.

Interstitial banner is an ad format that highlights the advertiser’s message more efficiently and has a higher engagement from users, leading to greater clicks and higher revenue. With the introduction of interstitial banner support in July 2017, we have seen high eCPMs for developers who have adopted this ad format into their apps. We added support for Revcontent since then and will be adding few more partners such as ‘MSN Content Recommendations’ and Undertone in the coming weeks.

Native ads:

We introduced support for native ads in the Microsoft Advertising SDK as an invite only preview program for game publishers & other app developers during /build 2017. During this phase, we added several native ads partners such as AppNexus, Microsoft app install ads and Revcontent to serve on the native ad placements. We are working actively to bring additional demand partners such as MSN Content Recommendations and Taboola in the coming weeks. These efforts will pay off for improving the yield for developers that build modern applications monetized through native ads.

Today, we are happy to announce that we are exiting the pilot phase and the Native Ads experiences are generally available to all developers.

One of our leading developers, PicsArt, who had been participating in the Native Ads pilot, had this to say about their Native Ads development experience:

“Implementation of Native ads was a smooth and seamless experience. From creation of ad unit to it’s addition in the application was easy and made clear with the help of the comprehensive documentation.”

— PicsArt

A Native Ad from the PicsArt Photo Studio application

Figure 2: A Native Ad from the PicsArt Photo Studio application

Universal user acquisition & engagement platform enhancements

We are happy to announce new set of capabilities to enhance the user acquisition and engagement capabilities in the Windows Dev center.

1) Acquire Users outside Microsoft Network: All the ad campaigns that you created up until now used to serve on the Microsoft’s 1st and 3rd party app and web properties as depicted in the picture below. However, some developers may have specific requirements for high volume of acquisitions or may be looking for very niche audience segments. Starting today, such ad campaigns by default will start serving on external websites and apps running on Windows 10 in addition to Microsoft internal ad surfaces. This feature will help developers find millions of users who can potentially download/use their app outside Microsoft’s 1st and 3rd party ad surfaces.

Difference between existing and new ad display surfaces

Figure 3: Difference between existing and new ad display surfaces

2) Video App Install Ads: We’re also announcing the beta program for video app install ads product where developers can use video ad creatives along with the banner/interstitial formats that we already support. We have seen amazing results with the top developers while running tests with CTR’s of around 5% when using video creatives which is almost 20X of the banner creatives. Though in beta, the program is open to all with campaign budgets higher than $10,000 and pricing of the video creatives for the first three months starting today will be $0.40 per thousand impressions. Post the promotional period, video rates will match with the industry averages for respective markets and will be auto-tuned by the ML algorithms to get the best cost per install during ad auctions.

3) Notification Analytics: Targeted push notifications are getting enhanced reports where the only available metrics were related to delivery rate and app opens until now. We will now give detailed reports for targeted notifications including positive clicks in the form of click through rate [CTR] and counts of actual actions by users on the notifications like click/dismissal/snooze/decay etc. Below are a few sample reports of the latest experiences that you will see in the notifications page starting today.

New notification metrics in the windows dev center

Figure 4: New notification metrics in the Windows Dev Center

Ad Viewability reporting in Dev Center

Advertising industry is moving towards valuing viewable impressions rather than just impressions delivered. Advertisers tend to bid higher for viewable impressions as they have an increased chance of their ads being seen by users.

We are happy to announce that you will now be able to measure the viewability of each of your ad units in the Dev Center Ads Performance Report.  The new ‘Viewability’ metric indicates the number of viewable impressions for every 100 ad impressions delivered. This metric allows you to determine the quality of your ad slot and allows you as a developer to make informed decision on ad placement in your app.

New Viewability Reports on DevCenter

Figure 5: New Viewability Reports on DevCenter

For more information on the rules used to classify an impression as viewable and tips to increase viewability on your ad unit, please refer to MSDN.

Microsoft Ad Mediation platform for Android

We are excited to announce the preview of Microsoft Ad mediation platform for Android developers. This will bring in all the goodness of the Microsoft Ad mediation Platform to the benefit of existing and new Android developers. We have many exciting capabilities including iOS & Web Ads SDK planned later this year. Learn more about current features through our documentation and code samples.

Microsoft Ad mediation platform for Android developers brings the same mediation and optimization capabilities that are available to UWP app developers today. Also available are all the same premium Microsoft and third-party ad partners that are currently serving on UWP publisher surfaces.

This platform is open for all Android app developers and publishers and not just for developers registered with Windows DevCenter. Please reach out to us if you are interested in this platform and augment your Android apps with additional Ad revenue today.

Also read:

Below is a list of capabilities that we released over the past two years which can potentially help in your journey of ad monetization and user acquisitions. Do give them a read!



Ad Monetization

Understanding the ad mediation configuration in the Microsoft ad mediation service
Announcing Microsoft’s Ad Mediation Service
Monetizing your app: Set your COPPA settings for your app
Earn more money by moving to the latest advertising libraries
Monetize your app: Know the user to serve better targeted ads
Monetizing your app: Use interstitial banner as fallback for interstitial video
Monetizing your app: Advertisement placement
Monetizing your app: Use Interactive Advertising Bureau ad sizes
Announcing the Windows Premium Ads Publishers Program
Best practices for using video ads in Windows apps

User acquisition & engagement

A complete user acquisition & engagement platform
Go Universal! Now your ad campaigns can reach users across Microsoft premium surfaces like MSN, Outlook and Skype
Make App Promotions Work: Acquire & Re-engage the Right Set of Users
Promote your App – Anywhere. Anytime.

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14 May 2018

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