What is wuauclt.exe?
wuauclt.exe is the AutoUpdate Client of Windows Update and is used to check for available updates (for various versions of the MS Windows platform) from Microsoft Update. The wuauclt.exe file is included in the Task Manager's list of active processes when it is waiting for a response or an action to be performed by the user.
Aside from updating a user's MS Windows-based system, the wuauclt.exe file also looks for MS Windows-based software and hardware updates. These updates can help avoid stability issues and even security risks or system vulnerabilities.
The Automatic update feature embedded on MS Windows can be manually turned on or off and can also be scheduled by the user. You can go to Control Panel, open Automatic Updates, and customize Windows Update.
Note: Some malware camouflage themselves as wuauclt.exe, particularly if they are located in c:\windows or c:\windows\system32 folder. Thus check the wuauclt.exe process on your pc whether it is pest. Be careful and make sure that wuauclt.exe is not malware.