idle time optimizer crashes my computer

I am using windows 7 home premium sp1 with NIS 2012.  On idle this program if allowed (meaning if when the notification pops up and I dont aggitate my mouse) causes my computer to freeze(lock up) in which case in order to use the computer I have to turn it off to reboot.  Can anyone help me turn this thing off.  I tried to turn it off in settings.  I tried uninstalling and reinstalling.  Is there a magic genie involved in this process?  Please help me with this.  Thank you.