Why don't you try to set them up as 'Run in Administrator' as you would in Win 7? Im sure its probably the same or near enough.
That is, highlight and R click on a one of PEVs tool icons >Go down to Properties and click on it > then in the next window open the Compatability tab > move down to the line Run as Administrator > Put a tick in the box beside it > then Save and Exit.
Open it again to check you were successful and this a time it should come up with the account control screen first as Shane mentions. Then do that to all the others.
I see in one of your earlier posts in this thread [a picture in post #6] that you have your main game residing in Program Files [86] That could be your problem. I hav always been told not to put in in that folder as it can cause problems but to hang it directly off C drive [ or what ever drive you use ]
For what its worth, My file path is C:/ N3V Games/Ts12/...... Oter s I new are just C:/ Ts12/.......
Im sure Shne can advise you on that. Cheers