Essential Windows system files may be missing or damaged due to disk errors or improper shutdowns.

The server replies, "Here is a manifest of 12 updates. But first, you need to download this new Windows Update Agent — version 7.9.0 — because your current agent is two years old."

It is located in C:\Windows\System32\ . A common crash or error means Windows Update is broken or conflicting with something.

Delete the contents of the C:\Windows\SoftwareDistribution folder. Restart the service and check for updates again.

DISM /Online /Cleanup-Image /RestoreHealth SFC /SCANNOW

She’d seen it before, but tonight, after the “best new” update, it felt different. The update had promised neural-pruned AI cores, “best new performance,” and a whisper mode for background agents. Instead, wuauclt.exe—Windows Update’s silent worker—kept dying.

If a previous update failed, it can leave the system in a state where wuauclt.exe continually tries to process the faulty update. Microsoft Learn The "Best New" Fixes & Solutions wuauclt.exe is the cause of random crashes? - Microsoft Q&A 17 Oct 2022 —