Microsoft has formally acknowledged a big disruption affecting Home windows 11 model 24H2 customers, particularly after putting in the cumulative replace KB5062553 launched in July 2025.
The difficulty primarily impacts environments utilizing Digital Desktop Infrastructure (VDI) and gadgets present process their first consumer logon.
Reviews point out that important shell parts, together with the Begin Menu, Taskbar, and System Settings, are failing to initialize accurately, leaving customers with a severely degraded or unusable desktop expertise.
The disruption stems from the working system’s lack of ability to register particular dependency packages in time in the course of the logon course of. This habits is especially acute in non-persistent OS installations the place utility packages should be provisioned recent for every consumer session.
Directors managing digital environments have reported that customers are regularly greeted with empty taskbars, unresponsive Begin buttons, or rapid crashes of the explorer.exe course of upon signing in.
The issue isn’t restricted to VDI; commonplace bodily workstations may also exhibit these signs in the course of the preliminary consumer profile creation instantly following the replace utility.
The basis trigger has been recognized as a race situation involving XAML (Extensible Software Markup Language) parts. These parts are crucial for rendering the fashionable Home windows UI.
When the replace is utilized, the dependent packages required by the shell don’t register earlier than the shell makes an attempt to load them. This ends in silent failures or express error messages from processes resembling StartMenuExperienceHost.exe and ShellHost.exe.
The next desk particulars the precise parts and packages concerned on this failure:
ComponentReported SymptomAffected XAML DependencyExplorer.exeRuns and not using a seen taskbar window or crashes repeatedlyMicrosoftWindows.Shopper.CBS_cw5n1h2txyewyStart MenuFails to launch; shows crucial error messageMicrosoft.UI.Xaml.CBS_8wekyb3d8bbweSystem SettingsSilently fails to launch when accessing Begin > Settings > SystemMicrosoftWindows.Shopper.Core_cw5n1h2txyewyImmersiveShellFails to initialize, inflicting black display screen or restricted UIAll XAML island views
Workaround and Mitigation Methods
Microsoft is actively growing a everlasting decision for this regression. Within the interim, IT directors and affected customers can restore performance by manually registering the lacking packages. For persistent installs, these instructions should be run throughout the consumer session, adopted by a restart of the SiHost course of.
Guide Registration Instructions:
powershellAdd-AppxPackage -Register -Path ‘C:WindowsSystemAppsMicrosoftWindows.Shopper.CBS_cw5n1h2txyewyappxmanifest.xml’ -DisableDevelopmentMode
Add-AppxPackage -Register -Path ‘C:WindowsSystemAppsMicrosoft.UI.Xaml.CBS_8wekyb3d8bbweappxmanifest.xml’ -DisableDevelopmentMode
Add-AppxPackage -Register -Path ‘C:WindowsSystemAppsMicrosoftWindows.Shopper.Core_cw5n1h2txyewyappxmanifest.xml’ -DisableDevelopmentMode
For VDI and non-persistent environments the place this subject recurs at each logon, a synchronous logon script is the really helpful answer. This script ensures that explorer.exe is blocked from launching till the mandatory XAML packages are totally provisioned, stopping the race situation.
VDI Logon Script Wrapper:
textual content@echo off
REM Register MicrosoftWindows.Shopper.CBS
powershell.exe -ExecutionPolicy Bypass -Command “Add-AppxPackage -Register -Path ‘C:WindowsSystemAppsMicrosoftWindows.Shopper.CBS_cw5n1h2txyewyappxmanifest.xml’ -DisableDevelopmentMode”
REM Register Microsoft.UI.Xaml.CBS
powershell.exe -ExecutionPolicy Bypass -Command “Add-AppxPackage -Register -Path ‘C:WindowsSystemAppsMicrosoft.UI.Xaml.CBS_8wekyb3d8bbweappxmanifest.xml’ -DisableDevelopmentMode”
REM Register MicrosoftWindows.Shopper.Core
powershell.exe -ExecutionPolicy Bypass -Command “Add-AppxPackage -Register -Path ‘C:WindowsSystemAppsMicrosoftWindows.Shopper.Core_cw5n1h2txyewyappxmanifest.xml’ -DisableDevelopmentMode”
Directors are suggested to check these scripts in a staging atmosphere earlier than broad deployment to manufacturing VDI swimming pools.
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