Your recent entries mess up
PlayReady for Windows Media Center
DRM for playing Netflix via browsers & WMC
I'd really suggest removing these because I have to delete this file to get Netflix working
and remove and reinstall PlayReady because you mess with this folder
I'm guessing both poop out because you touch the DRM directory
I know I can uncheck DRM but I'd leave it up to you to determine whether it's a good thing but I never like cleaner apps that have unintended consequences.