Hope this hasn't been posted, but I couldn't find anyone with the same problem online.
I was optimizing my computer by selecting which Windows 8.1 services to disable, following Black Viper's guide. I must have accidentally disabled Application Information and a few others because now I can't run any program or tool that requires UAC elevation. Now I need to re-enable these services, but going into services.msc is impossible because I need to elevate it. It gives the following error:
The service cannot be started, either because it is disabled or because it has no enabled devices associated with it.
A bit of a paradox and catch-22 that could easily be remedied by booting into safe mode and re-enabling them there. However for some reason I get a black screen with the words "Safe mode" flashing, and disappearing in each corner along with the mouse cursor. I've tried all the safe mode boot options and they all do it. No idea why. The only thing I can do is boot into command prompt and use FRST to scan but I don't know how to enable services using the program.
If anyone knows how to enable Application Information and maybe Windows Installer and Windows Modules Installer using FRST I'd be very grateful.