The wuauclt.exe process (Windows Update AutoUpdate Client) is a core background component of the Windows operating system. Its primary job is to check Microsoft servers for operating system updates, patches, and security fixes. When this process crashes, your system loses its ability to download and install critical security updates automatically, leaving your computer vulnerable to exploits.
ren C:\Windows\SoftwareDistribution SoftwareDistribution.old ren C:\Windows\System32\catroot2 catroot2.old Use code with caution. Restart the services:
Windows has a built-in automated repair tool.
Temporary files in this folder can be corrupted. Deleting them forces Windows to re-download update components. Stop the via services.msc . Navigate to C:\Windows\SoftwareDistribution .
Navigate to (or System > Troubleshoot on Windows 11).
Sometimes, the very updates wuauclt.exe is trying to install can be the source of the problem.