Im new to the forums and only joined because of this problem

My limewire was continually restarting until i deleted it completely from the computer and followed the steps. after i opened the taskmanager, there is no winupdate.exe or anything similar, and there is nothing using lots of processing apart from the System IDle processes one. i know there is still a problem though becuase my ctrl+alt+del doesnt work at all

if anyone knows what the problem is or can speculate to what it might be please let me know