Install Off 2000 Reboots W2K

[RRitz]

I posted this on the Win 2000 Forum and have not found an answer. I am not very familiar yet with w2k .. since I am using 98. My involvement with this problem computer is through my friend. They received the Klez virus on their computer that is running w2k and it is also the computer that runs their network of 3 other computers (that are on w98). I was able to clean off the virus on all computers ... but to completely do that I had to delete some stuff on their C drive as there wasn't enough room to load the virus program. So we moved Quick Books to the D drive which has lots of room. (Did an uninstall and reinstalled on the D drive.) Some of the MS programs (97 WOrd etc..) would not uninstall on the C drive through the uninstall program so I just had to delete them and run the Norton doctor program to clean up the registry. I wasn't too concerned about getting rid of it as I planned on installing Office 2000 on the D drive.
However, now whenever I try to install Office 2000 the computer reboots itself just as the mssetup program begins (the program automatically starts as soon as you put the CD in the drive). I have turned off the auto reboot option in setup but it still reboots. One attempt after getting the blue death screen, I was able to see an error message that read: "STOP unexpected-kernel-mode-trap Beginning dump of physical memory
Dumping physical memory to disk"

I did get Office 95 installed and an upgrade to Word 97 on the D drive.
I have never encountered a computer rebooting itself and have exhausted any ideas I have.

Rritz