microsoft/WindowsAppSDK

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The Windows App SDK empowers all Windows desktop apps with modern Windows UI, APIs, and platform features, including back-compat support, shipped via NuGet.

Stars: 4.7k
Forks: 471
Open beginner issues: 0
Indexed issues: 358
Avg merge: 3d 13h
Merged PRs (30d): 28

Dominant language: C++
License: MIT
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Beginner friendly Everything

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358 open issues indexed

AppNotificationManager.Register() still throws 0x8007007E (missing Microsoft.WindowsAppRuntime.Insights.Resource.dll) in self-contained unpackaged apps on 2.5.1; #6071 closed by #6725 but not fixed Open

needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 52/100

microsoft/WindowsAppSDK#6774 · 1 reaction · Opened Sep 18, 2026
Proposal: Add IReserveableVector to WinRT Open

needs-triage

Difficulty 5/5 Over a week Newbie friendliness 35/100

microsoft/WindowsAppSDK#6768 · Opened Sep 17, 2026
NU1603 reported when installing WinUI 2.3.9 (2.5.1) Subpackage only Open

needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 45/100

microsoft/WindowsAppSDK#6766 · 2 comments · 5 reactions · Opened Sep 17, 2026
Certificate conflict when installing multi-architecture MSIX bundle Open

needs-triage

Difficulty 3/5 1-2 days Newbie friendliness 70/100

microsoft/WindowsAppSDK#6765 · Opened Sep 17, 2026
[Bootstrap/Deployment] Unpackaged WinAppSDK 2.x apps resolve the latest compatible runtime and cannot select the build-time minor version Open

needs-triage

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/WindowsAppSDK#6755 · Opened Sep 13, 2026
Crash on building a notification Open

needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 55/100

microsoft/WindowsAppSDK#6746 · Opened Sep 11, 2026
[Bug] SystemMediaTransportControls.GetForCurrentView throws “Invalid window handle” in WinUI 3 Open

area-External needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 48/100

microsoft/WindowsAppSDK#6740 · 2 comments · Opened Sep 5, 2026
Outdated roadmap documentation Open

documentation needs-triage

Difficulty 3/5 1-2 days Newbie friendliness 48/100

microsoft/WindowsAppSDK#6736 · 4 reactions · Opened Sep 2, 2026
Fail-fast 0xC000027B on machines with accumulated WindowsAppRuntime 1.8 revisions: activation fails with "Package not found" for the framework package the process is running from Open

area-Activation needs-triage

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/WindowsAppSDK#6724 · 2 comments · Opened Aug 27, 2026
dotnet publish omits the app's .pri for unpackaged WinUI apps: publish wiring exists only on the MSIX path, not the MrtCore path Open

area-MRTCore area-Packaging needs-triage

Difficulty 3/5 1-2 days Newbie friendliness 74/100

microsoft/WindowsAppSDK#6720 · 2 comments · Opened Aug 26, 2026
[MSIX] Add SYSTEM support for apps and drivers. Open

area-External

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/WindowsAppSDK#6717 · 1 comment · Opened Aug 25, 2026
Add a C++/WinRT 3.x module-ready option/project template for WinUI C++ projects Open

area-WinAppSDK:Templates needs-triage

Difficulty 5/5 Over a week Newbie friendliness 35/100

microsoft/WindowsAppSDK#6690 · 1 comment · Opened Aug 14, 2026
Add a plain C++/WinRT Runtime Class item template for WinUI projects Open

area-WinAppSDK:Templates needs-triage

Difficulty 5/5 Over a week Newbie friendliness 45/100

microsoft/WindowsAppSDK#6689 · 4 comments · Opened Aug 14, 2026
C++/WinRT WinUI item templates generate incorrect namespaces and generated-file paths for items in project subfolders Open

area-WinAppSDK:Templates needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 48/100

microsoft/WindowsAppSDK#6688 · Opened Aug 14, 2026
Microsoft.Windows.SDK.BuildTools.MSIX.Pri.targets(838,5): error MSB4044: The "WinAppSdkGenerateProjectPriFile" task was not given a value for the required parameter "ProjectPriIndexName". Open

area-MSIXBuildTools needs-triage

Difficulty 3/5 1-2 days Newbie friendliness 38/100

microsoft/WindowsAppSDK#6676 · Opened Aug 10, 2026
Improve the transparency of triage, ownership, and public decision-making process in the WASDK and WinUI repos Open

documentation needs-triage

microsoft/WindowsAppSDK#6672 · 50 reactions · 1 assignee · Opened Aug 6, 2026
Self-contained component targets expose runtime payloads as project items during DesignTimeBuild Open

area-SelfContained needs-triage

Difficulty 3/5 1-2 days Newbie friendliness 68/100

microsoft/WindowsAppSDK#6666 · 2 comments · Opened Aug 2, 2026
Standard users cannot launch WinAppSDK apps: Singleton package Access Denied (0x80070005) Open

area-PackageManagement needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/WindowsAppSDK#6642 · 2 comments · Opened Jul 21, 2026
BatchRecognition returns English text for Japanese audio with no documented language setting Open

area-WCR needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 42/100

microsoft/WindowsAppSDK#6640 · Opened Jul 20, 2026
PackageManager "Staging" call for App Attach fails with ACCESS DENIED if made from inside a container. Open

area-PackageManagement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

microsoft/WindowsAppSDK#6639 · 2 comments · Opened Jul 20, 2026
How to use the CompositionEngine API, is there a corresponding tutorial available? Open

area-WinUI documentation needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/WindowsAppSDK#6635 · 7 comments · 3 reactions · Opened Jul 18, 2026
Badge notifications can be lost when clearing and immediately setting a new badge value Open

area-Notifications needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 45/100

microsoft/WindowsAppSDK#6616 · Opened Jul 13, 2026
MIGraphX EP crashes in bundled amdhip64_7.dll (access violation, 0xc0000005) compiling a large model on RX 7900 XTX Open

area-WinML needs-triage

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/WindowsAppSDK#6611 · 1 comment · Opened Jul 10, 2026
VitisAI EP (v1.8.63.0) accepts a valid amd-quark INT8 model but assigns all/some nodes to CPU with zero diagnostic detail Open

area-WinML needs-triage

Difficulty 5/5 Over a week Newbie friendliness 35/100

microsoft/WindowsAppSDK#6610 · Opened Jul 10, 2026
XBF files are copied to MSIX even though already embedded in PRI file when referencing library project Open

area-MSIXBuildTools needs-triage

Difficulty 3/5 1-2 days Newbie friendliness 62/100

microsoft/WindowsAppSDK#6605 · Opened Jul 9, 2026
[Feature] Provide a GUI-based Windows App SDK Runtime Manager with dependency visualization and cleanup support Open

area-WinAppSDKDeployment feature proposal needs-triage

Difficulty 5/5 Over a week Newbie friendliness 30/100

microsoft/WindowsAppSDK#6587 · 1 comment · 6 reactions · Opened Jun 27, 2026
Windows App SDK 2.0 installation requires admin elevation Open

area-Installer area-WinML needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 42/100

microsoft/WindowsAppSDK#6586 · 3 comments · Opened Jun 25, 2026
Window.Activated do not fire the event for "Deactivated" and "Activated" status if being activated by "RedirectActivationToAsync" just now Open

area-Activation needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 45/100

microsoft/WindowsAppSDK#6579 · 2 comments · Opened Jun 22, 2026
[2.x Servicing] Add new 'GetPackage[Graph]File` APIs Open

area-PackageManagement needs-triage

microsoft/WindowsAppSDK#6576 · 1 assignee · Opened Jun 21, 2026
Windows App SDK Push: documented PFN mapping mailbox bounces, packaged Store app gets WNS 403 Open

area-Notifications documentation Status: In-Progress

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/WindowsAppSDK#6574 · 6 comments · Opened Jun 21, 2026
Single instance app redirect causes COM Exception when reading Kind property of AppActivationArguments Open

area-Activation needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/WindowsAppSDK#6573 · Opened Jun 20, 2026
MSIX No Clue how to Add Service Description Open

area-External documentation

microsoft/WindowsAppSDK#6572 · 2 comments · 1 assignee · Opened Jun 19, 2026
[BUG] Updating MSIX Results in a Stopped Service Open

area-Packaging needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 48/100

microsoft/WindowsAppSDK#6571 · 1 comment · Opened Jun 19, 2026
MSB6003 build failure from MakePri collision Open

area-MSIXBuildTools needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 45/100

microsoft/WindowsAppSDK#6570 · Opened Jun 18, 2026
WindowsAppRuntimeInstall 1.8.260101 fails with 0x80073CF3 when deploying Singleton 8002.0.1.0 before Microsoft.WindowsAppRuntime.2 framework exists Open

area-Installer needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 38/100

microsoft/WindowsAppSDK#6569 · Opened Jun 17, 2026
Broken never-ending download of irreversible Update on Microsoft Store Open

area-External Status: Investigating

Difficulty 4/5 3-5 days Newbie friendliness 32/100

microsoft/WindowsAppSDK#6564 · 11 comments · 1 reaction · Opened Jun 11, 2026
Please change the definitions in winrt/Microsoft.UI.Interop.h from internal linkage to inline Open

area-Projections needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 42/100

microsoft/WindowsAppSDK#6563 · Opened Jun 11, 2026
Microsoft.Windows.AI.Speech speech recognition API crashes with 0xC000001D: Illegal Instruction Open

area-WCR needs-triage

Difficulty 5/5 Over a week Newbie friendliness 35/100

microsoft/WindowsAppSDK#6561 · 1 comment · Opened Jun 11, 2026
On the state of the file system APIs Open

area-File access needs-triage

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/WindowsAppSDK#6528 · 5 comments · 4 reactions · Opened Jun 2, 2026
Application notification manager throws on a partial trust application Open

area-Notifications needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 48/100

microsoft/WindowsAppSDK#6524 · 2 comments · Opened May 30, 2026
AppInstance redirection has potential to hang forever Open

area-Lifecycle needs-triage

Difficulty 3/5 1-2 days Newbie friendliness 76/100

microsoft/WindowsAppSDK#6521 · Opened May 29, 2026
FileOpenPicker (et al) does not restore keyboard focus properly to the window Open

area-File access needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 45/100

microsoft/WindowsAppSDK#6505 · 1 comment · 2 reactions · Opened May 25, 2026
Feature: Add EnergySaverStatus2 API to Microsoft.Windows.System.Power.PowerManager Open

area-Power needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 45/100

microsoft/WindowsAppSDK#6483 · 2 comments · Opened May 15, 2026
Cannot create multi architecture app bundles in debug mode Open

area-External needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 38/100

microsoft/WindowsAppSDK#6460 · 2 comments · Opened May 7, 2026
dotnet new winui-mvvm does not create the PublishProfile folder Open

area-WinAppSDK:Templates Status: In-Progress

microsoft/WindowsAppSDK#6452 · 1 comment · 1 assignee · Opened May 5, 2026
AppInstance.UnregisterKey() causes a failfast crash when called on a different thread than FindOrRegisterForKey(...) was called from Open

area-Lifecycle needs-triage

Difficulty 4/5 3-5 days Newbie friendliness 42/100

microsoft/WindowsAppSDK#6447 · 1 comment · Opened May 3, 2026
MakePri PRI277 "Conflicting values" on framework resources during multi-project MAUI publish with WindowsAppSDKSelfContained=true (1.8.x and 2.0.1) Open

area-SelfContained

microsoft/WindowsAppSDK#6439 · 2 reactions · 1 assignee · Opened Apr 30, 2026
App instance redirection needs to fully support command line arguments (including current working directory, ideally exit code and deferral also) Open

area-Activation needs-triage

Difficulty 5/5 Over a week Newbie friendliness 35/100

microsoft/WindowsAppSDK#6431 · 4 comments · Opened Apr 24, 2026
Ship XML doc files alongside .winmd in Microsoft.WindowsAppSDK.AI NuGet package Open

area-WCR documentation needs-triage

Difficulty 3/5 1-2 days Newbie friendliness 58/100

microsoft/WindowsAppSDK#6423 · Opened Apr 21, 2026
Scheduled Tasks Open

area-PackageManagement

microsoft/WindowsAppSDK#6415 · 3 comments · 1 reaction · 1 assignee · Opened Apr 19, 2026

microsoft/WindowsAppSDK

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