Here's a link to my last post

http://forums.spybot.info/showthread.php?t=32788&page=2

Another problem has arisen now. After all those scans, and deleting the files, I rebooted. Everything was fine, until I did a Windows Update, after which it wouldn't startup properly. I dad a Repair which worked fine. Then it wouldn't recognise the CD drive, so I followed a procedure from Microsoft, rebooted, then it recognised it again.
On Sunday night, John turned it off, and it said it was installing an update on shut down (the same update it had installed twice before) and on Monday morning it just crashed on the initial loading screen again.

I think it is going to be quicker, and more affordable for him, for me to do a rebuild.