Erm ... you have 3 listed ... that ain't good at all! No wonder you were having problems. I'm not sure how you can still have them running after rebooting. Shutdown & then restart should do the trick. Wait a few mins before restarting.

BTW do a computer search for limewire & see what you come up with. I wonder if there's more than one version installed. Check their sizes to see if they are actually programs.

It doesn't say they're using the CPU but total CPU was 0%. They shouldn't be listed. And certainly not 3 of them!