Even with this process set to manual, and stopped, in services, something
keeps running it.  I have now disabled it to keep it from running.

Any ideas?

I don't want it to run all the time.  Only when I want it to.

Which edition of Windows and what Service Pack level is this happening on ?

In which locations and how many wuauclt.exes are present ?
When you locate them all, right click on them, choose Properties.
Which file version is the most recent wuauclt.exe ?
Please post the Version.

*What* is the installed antivirus/security suite and is a 3rd party
firewall being used ?

MowGreen
===============
  *-343-*  FDNY
Never Forgotten
===============

banthecheck.com
"Security updates should *never* have *non-security content* prechecked"

Note that wuauclt.exe is not itself a service, although it is launched by the
Automatic Updates (or Windows Updates on Vista/W7) service under certain
circumstances.  It can be launched in other ways too.

So, to clarify: when wuauclt.exe started unexpectedly, had the WU/AU service
also started?

Did disabling the AU/WU service actually stop wuauclt.exe from running?

Did you try looking in WindowsUpdate.log for clues?

   Harry.