I had Pop-up Virus and I used Mcafee to clean them. It didn’t clean them well. Then I used Spybot. But I think Spybot deleted some of my system files in Window XP. I can’t boot my computer now. I have Dell reinstallation CD. But I don’t want to install the Whole Window and erase all my data and softwares. Some of my softwares, such as Microsoft Office, came with my Dell computer but I don’t have the CD to re-install them. Is it possible I can boot my computer and repair my Window XP?
Please help!
Thanks everyone! I’ll try your advices at home tonight.

I need diagnostic software and / or hardware to trouble shoot computer hardware and software issues on PCs. I'm looking for any suggestions for what package to get,
I am currently using Window XP, and trouble shoot problems for my family that use a variety of Windows O/Ses