The other day I decided to reinstall Windows 2000 on my computer because my comp was running out of memory, and now after the reinstallation is completed my computer is running extremely slow.  I have no idea why this happened or how to fix it.  During the reinstallation I changed my hard drive from FAT to NFTS.  Would that have something to do with it?  Someone please help me and let me know what I should do next.