Open notepad, copy it in. Then save as: wsusreset.bat
Then just run it. This is so my server picks up the pc's properly but i can't see any reason why it wont work on a standalone.
The WUAUCLT is the process for Windows Update, so at the end of the script it runs the update program. You might also want to try disabling Windows Updates if problems still persist, then trying an update from the website.
The more details you can give me the better, ive never had this issue.
Hope it all make sense