Delete the folder, or if you're worried about data loss, move it to somewhere other than the current path. If something bad happens you can still restore it. Possibly you'll have to do it in safe mode.
Reboot the computer and check the process list, it shouldn't appear any more. Run CCleaner and remove from registry all references to non-existing software. If all is OK delete the folder permanently.
Then reformat the whole kit and kaboodle and install FreeBSD.
^- just kidding
.