For Windows 11, version 25H2, there is a documented issue where desktop background settings can reset to black after certain updates, but the context does not document a known 25H2 issue matching this exact pattern of mouse clicks failing in the taskbar, Start menu, and folders while the desktop still accepts clicks.
The supported troubleshooting path for shell UI problems in the provided material is:
- Check for and install the latest Windows update
- Go to Settings > Windows Update.
- Install the latest cumulative update available for Windows 11 25H2.
- This is important because Microsoft has resolved multiple 25H2 shell-related issues through later updates.
- Clear the icon cache
- Save open work first, because Windows Explorer will be restarted.
- Open Task Manager with Ctrl + Shift + Esc.
- In Processes, find Windows Explorer.
- Right-click Windows Explorer and select End task.
- In Task Manager, select File > Run new task.
- Type cmd.exe and create the task with administrative privileges.
- Run:
CD /d %userprofile%\AppData\Local DEL IconCache.db /a - In Task Manager, select File > Run new task again.
- Type explorer.exe and press Enter.
- Re-register Shell Experience Host
- Open Windows PowerShell as administrator.
- Run:
Get-AppXPackage -AllUsers | Where-Object {$_.InstallLocation -like "*ShellExperienceHost*"} | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"} - Restart Windows.
Because the issue persists even after reinstalling Windows multiple times, the most relevant supported next step is to make sure the device is fully updated to the latest 25H2 update level before repeating the shell repair steps above.