If your computer shut down during the middle of the uninstall command, chances are high that your computer simply crashed. It probably wasn't a virus at all. Are you sure it was a virus? That is, did one of the anti-virus programs notify you somehow?

First question: What was it that you were trying to uninstall? The program probably still has bits and pieces lying around. It is also possible that the Operating System still thinks it needs parts of that program.

Second question: Do you have installation media? That is, do you have a CD-ROM with the Windows XP operating system on it?

The first thing you need to do is to try and get the machine to boot. Try and boot the machine into Safe Mode. Let me know if you need assistance here.

If you can get the machine to boot into safe mode, check the uninstaller and see if the original program still shows up. If it does, try to uninstall it again.

If that doesn't work, there's another option. Windows XP has a "roll-back" feature that allows you to restore the machine to a previously saved state. You can try to have the OS configure itself for oh, say, last Tuesday. The idea is to roll it back to some time before you had the crash.

If that doesn't work, try re-installing the program (to put everything back the way it was). Once you have re-installed the program, uninstall it.

If you can't get the machine to boot into Safe Mode, you may have to boot from the CD-ROM. You have to be careful here, because you don't want to inadvertently reformat you hard drive and install the OS from scratch.

From the CD-ROM, Windows should be able to detect that there's already an OS on the disk drive. You should have the option to repair or re-install the OS. Try the repair option first. If that doesn't work you'll have to consider re-installing the OS. There are many things to consider at this point, and I can't possibly discuss them all in this forum. We're getting into long distance brain surgery here. It's bad enough over the phone, e-mail is even worse.

If you feel any of this is beyond your ability then you'll have to contact someone for technical support. If possible, call the place that built (or sold you) your computer (Dell, Gateway, your local shop, Best Buy, etc.). They should be able to diagnose this (except for possibly BB) and recommend a course of action.

I'm not local to LV, so I don't know any good technician in your neck of the woods. Ask around for a highly recommended local computer vendor. You want someone who understands these tempermental beasts, not just someone who bangs them out by the 100's every month.

If all of the above fails, PM me and I'll see what I can do. I do not repair computers for a living (not per my job description, anyway) but have more experience than I care to admit where nursing sick Windows operating systems back to health are concerned.