Hi EFWhite, This is Ramesh.
The Windows Client CBS component is a core part of Windows. Please try one of the methods below to fix the issue.
Perform a System Restore rollback
Press Win + R, type "rstrui.exe" and click OK. This starts the System Restore window. Select a restore point created before the issue was first seen. Then, roll back the system to that point.
Repair install Windows 11
If that doesn't help or no restore point exists, repair your Windows 11 installation using these steps:
- Download Windows 11 Media Creation Tool (MCT) from this link:
https://go.microsoft.com/fwlink/?linkid=2156295
- Run MCT and download the ISO it recommends for your system.
- Right-click on the downloaded ISO and choose "Mount." This assigns the ISO a drive letter.
- Run setup.exe from the ISO drive. This starts the repair installation.
(Your files, settings, and applications will be preserved if you use the ISO recommended for your system by the Media Creation Tool. However, ensure that the "Keep personal files and apps" option is ticked/auto-selected during the setup.)
Note: Your activation will not be lost during the repair installation process.