I had a little issues with my win8 installation.
Everytime i need to copy anything from 1 drive to another it always tells me that i need administrative permissions. (it's not that stupid uac message, it was one of the first things i disabled.. hate that thing) It's not a big problem sense i can just click continue, but it's still bothered me. i found out that my user don't have modify access on the C:\ root.
Now the problem was that It didn't allow me to gain myself "full control" over C:\. So i downloaded a software called magic unlocker. It has served me well in windows 7. (i have had a similar problem that magic unlocker fixed in a blink of an eye. so obviously i tried that first). I used it on my C:\ drive and it BSOD'ed. Then explorer.exe wound't start when i turn on the system. not even if i told it to start via the "new task" in the job list.
I launched system restore via CMD (start rstrui.exe). Good old command prompt.
I figured out that I needed to apply some permissions to each
of the individual folders in C:\ (i was not able to do it on the root. I had to choose a folder). I first needed to change the ownership from Micro$ofts stupid "trust installer" to the administrators group.
then i could give myself full access. easy peasy. This just shouldn't happen. The problem started from a fresh install.
anyway. just thought i'll tell you guys.