Azure Virtual Desktop - Black Screens on logins - What we've tried so far

JPlendoThe buggy component is the App Readiness service, and this is not the first time we seem black screens and the same service responsible. Kill that service and you fly in on the desktop, but then SSO stops working so causes other problems. They need to fix it.

But its troublesome that they dont post any public articles on this.

Fix will be KB5045594

To help on a faster logon that dosent wait for App Readiness, the below reg keys works (But dosent fix the appsvc service crash)

Windows Registry Editor Version 5.00

; --------------------------------------------------------------------------------------
; #Reason: Fix App Readiness with timeout

; --------------------------------------------------------------------------------------
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer]
"AppReadinessPreShellTimeoutMs"=dword:00060000
"AppReadinessGlobalTimeoutMs"=dword:00120000

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server]
"fRunAppReadiness"=dword:00000000
; --------------------------------------------------------------------------------------