hmmm try ctr-alt-del this will bring up task manger. Make sure no instances of limewire are running. If there are any kill the process.

Use windows explorer and search for anything limewire. Delete anything you find. If you have a registry checking program I would run it after this.

If that fails to work try starting in safe mode, and use windows explorer to search for anything limewire, and delete if you find anything. Make sure search location is set to search your hard drive.

You do have admin. privilges for the account your doing this from don't you?

BTW where did you get LimeWire from?