Forum Discussion
Azure Virtual Desktop - Black Screens on logins - What we've tried so far
Microsoft has advised that the fix will be released in the October patch, meanwhile a KIR (Known Issue Rollback) has been release to fix this Appx Crash issue.
Please https://download.microsoft.com/download/a7ee9dc7-dfc9-498d-808c-86f2c046a55d/Windows%2010 20H2, 21H1, 21H2 and 22H2 KB5040525 241001_01051 Known Issue Rollback.msi this KIR and follow instructions https://learn.microsoft.com/en-us/troubleshoot/windows-client/group-policy/use-group-policy-to-deploy-known-issue-rollback
This will install a new computer Local Group Policy which looks like this,
...which then need to be set as disabled, please reboot and you'll see that the Appx Crash will stop.
This has been the solution from Microsoft to deal with the issue until next windows patch release.
Give it a try and let me know if it works.
Look likes Microsoft should fix it soon :
Microsoft has identified a bug affecting Azure Virtual Desktop. Users are now experiencing intermittent black screens for 30 seconds to 3 minutes during sign-in.
This issue is linked to the patch update KB5043064 (OS Builds 19044.4894 and 19045.4894), installed on September 10, 2024
After reviewing application logs, we found that the AppXSvc service is crashing due to an uninitialized m_targetUserSidString in the OSIntegrationManagerHost::Initialize. (event ID 1000)
Per Microsoft, a permanent fix is pending and is most likely to be fixed with October patch.
Here are some workarounds suggested by Microsoft :
Uninstall the problematic updates: Go to Settings → Windows Update → Update History → Uninstall Updates. Select KB5043064 then click on Uninstall and reboot your system.jlou65535 it's Funny that he suggest it's just Azure Virtual Desktops. Check the logs on any win10 device with Sept Cumulative update and it has the same errors. Them attempt to do any Appx related commands and find yourself Facing RPC Errors. I uninstalled Sept Cumulative update as a test and it cleared up the app crashed in event viewer and restored Appx. I also tried installing Oct CU and the fix is not included yet.
