start>all programs>limewire>uninstall
That should work.
search the forum for one of ursula,s posts. There are a bunch of links in the signature.
I would suggest d/l spybot, and ad-aware by lavasoft, and run them along with your anti-virus software. If you don't already have them.
Try d/l the updated version of LimeWire from here, the basic version is free.
http://www.limewire.com/english/content/download.shtml
It has no adware bundled with it, as far as I'm aware. There were problems with the version you had.