If the install date doesn't show under Add & Remove Programs, it will with CCleaner. There is an uninstall tool with that software.
While you're in that panel, look for anything else that was installed on that date.
Sometimes I feel like when the screen goes blank it stops. (It's Trend Micro, if that helps.)
That was one of the several issues that I had with Trend Micro, the most notable of which, it asked me to remove MBAM Pro before install. Newegg lured me into buying this crap AV (2012 version) for $9, which included a 4GB Flash drive, of which I still have. Otherwise, I'd have declared the entire purchase as a loss.
Trend Micro didn't stay on my notebook for a month, much less a year. Slowed an otherwise perfectly fine install of Windows 7 Pro x64 on a decent CPU with 8GB RAM.
If needed, go into the Control Panel & select Power Settings, set to Maximum Performance. One shouldn't have to do this just over security software, it sounds that software needs to be tuned to run better on the computer, or trashed.