First of all, if you plan on using the computer, you should NEVER delete any of the system 32 folder. It is full of files that are crutial to system operation. If you are cleaning out a hard drive, (or computer-if you just got it used) it would be easier to reformat the drive, and reinstall everything after backing up all the files you want.

I was cleaning up a computer that my friend found in a dumpster- and after deleting some of the system folders, I shut it down for the evening. The next day-- funny it wouldn't ever start again. As it was a windows 95 machine I could not reinstall the system. I had a paperweight!

If you are trying to get rid of a virus- let an antivirus program get rid of it as it can destinguish good between bad. Norton is not always the best choice- sometimes you need antispy/addware also.