wuauclt.exe is a application which is probably NOT a virus or malware. So, if wuauclt.exe is on your system, it is probably ok, and will NOT be a cause for concern. Even if your system is virus-free, we still advise you to use a good antivirus with a good detection rate, in order to yourself yourself against viruses and malware.
The default name and folder where the application is stored is
C:\Windows\System32\wuauclt.exe.
The MD5 checksum for this file is 5899df933bbdb9896f84f1c14dcc17f0.
This application does NOT operate as a Windows service. This is normally a good sign.
wuauclt.exe seems to use the functions of Windows SFC (System File Checker) or Windows File Protection.
64-bit code has been detected. This exe can put to good use the full power of a modern PC processor.
wuauclt.exe has a digital signature. Nowadays most serious software applications are digitally signed.
The digital signature attached to wuauclt.exe verifies as ok. This is most likely a clean, ok program.
Digitally signed by: Microsoft Windows
Certificate's issuer name: Microsoft Windows Production PCA 2011
This application does NOT have an uninstall command stored in registry.