when you get the menu from F8 Select 'Safe Mode'. allow windows to boot. Find the folder where your music is and delete them. If it wont allow you to delete them still then check out the link I'm putting below. Also, as the last person said, uninstall Limewire. It's a gateway lots lots of bad stuff. 90% of what you can download from Limewire is infected. Even if you pay for it. Get the program Azureus and do some reading about Bittorrent. you can download anything with that  and its fast and free. Hope this all helps!
http://www.softwarepatch.com/software/moveonboot.html
                
 MrSpiffdifilous
                
 September 2007