Problems with Windows account and Media Center extender

I had been having a problem with my Windows Media Center Extender only working shortly after the associated PC had been booted. Any other time, it would get stuck at Starting Up. I noticed in the event viewer on the PC that there were issues with the account getting locked, and issues with the registry being in use. I finally decided to try creating a different account in Windows to see if that would get locked out too. It turned out to have a problem as well. When logging in after having booted a few hours before and having already been logged in as my main profile, the new profile would say "Preparing your desktop", which happens when the actual profile can't be loaded. With some help from the message boards at this link, I discovered the problem was Google Updater. First time I've been upset with Google, I think.