Some things to try
- sfc /scannow
- dism /online /cleanup-image /restorehealth
- additional resources for Windows Update - Windows Client | Microsoft Learn (manual steps)
- a repair install by running setup.exe from the root of install media
- uninstall the last successful cumulative update, install latest SSU followed by latest cumulative update
You can also try a repair install by running setup.exe from the root of the install.
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