wuauclt.exe is a application which is probably NOT a virus. So, if wuauclt.exe is on your PC, it is probably ok, and will NOT be a cause for concern. Even if your PC is virus-free, it is still recommended to purchase a well-known antivirus with a good detection rate, in order to yourself your PC against threats.
Normally, this application is found in C:\WINDOWS\system32\wuauclt.exe.
The MD5 fingerprint for this file is 4f2ddaecd720aaa6ad7475e5a29e5980.
This program is NOT registered as a Windows service. This is good.
wuauclt.exe seems to use the functions of Windows SFC (System File Checker) or Windows File Protection.
This exe runs as a 32-bit program. It can not benefit of the entire power of nowadays' computer chips. This is quite normal because the authors did not bother to upgrade it to use the x64 instruction set.
The description written in the exe is Atualizações Automáticas.
File version extracted from the file 5.4.3790.5512 (xpsp.080413-0852).
Maker Microsoft Corporation.
Legal copyright notice © Microsoft Corporation. Todos os direitos reservados..
Some unusual functions of Windows have been used, such as functions for recording the keyboard. We recommend you to read more about this program.
wuauclt.exe has a digital signature. Today the large majority of virus-free programs are digitally signed.
The digital signature attached to wuauclt.exe is valid. This is most likely a clean, ok program.
Digitally signed by: Microsoft Windows Component Publisher
Certificate's issuer name: Microsoft Windows Verification Intermediate PCA
This application does NOT have an uninstall command stored in registry.