After many installs and uninstalls, the computer gets hundreds of entries and deletes. I would suggest two things: 1. Go to Search enter "Limewire" and delete every entry possible that says "Limewire" 2. The register is probably clogged also, but I WOULD NOT enter the register unless you are an advanced user, however there is a website called "Registry Crawler" that you can temporarily download that WILL get rid of ALL register "Limewire" entries.
I am NOT a computer expert, but you may try this before taking to a professional computer man/woman