Sean,
Sounds like you may have contracted a Virus. See Link below.

To fix the limewire keeps popping up / no taskmanager bug do the following.

I have read that Brut Force Uninstaller might not be fixing this problem anymore, so I will also recommend this.

This is probably one of the best help Forums for Malware I've found. Just another suggestion.

Malware Removal - MajorGeeks Support Forums.

Good Luck!!

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