I've run into a mouse USB adapter keeps the display from going off as well as malware. Your post is "this doesn't work" and since this area has some hundred reasons not to work I can't list them all.
You need to think over a plan of attack and consider if you have some new device on the PC as well as you have time to scan with Grif's help at http://www.cnet.com/forums/discussions/how-to-remove-pup-option-603542/#post-f742c795-5881-433b-a29b-6d758efe5cd3
My Power Settings for Monitor being on and off are no longer working. I've tried a system restore and changing the time mins. and neither didn't work to correct the problem. Please advise if there is a solution to this problem. Thank you.