I've got 2 computers...

Hey again.. I've got 2 computers, a laptop and a desktop. I only install well know programs on my laptop and it is as fast as the day I got it... but my stupid desktop slows down by about 50% every time I install something else. I used This registry editor and it worked great!!! I was so excited I told all of my friends. Well, one night I was going through download.com's top 5 programs and stumbled over "Error Nuker". It was way helpful in keeping my speed up and getting rid of many errors, the best part is the download is free. I think ive got a link to the free software in the next post.