Nope i have tried all that already i even had a Tech on the Asus hotline for about an Hour who went through some stuff with me and he can't fix it he said its a problem with Windows 8.1 itself.
I will tell you what i have tried so far:
Boot option changes = ineffective
Cmd in Admin = sfc /scannow, ren system restart, diskpart, bootrec, Dism.exe all tried all = ineffective
wim datei restart and refresh on drive C: and D: = ineffective
chkdsk runs without error
Disk Management = no problems
Reinstall from external Media = ineffective
ReAgentC scan shows active and no error
I have a full recovery disk from my original windows 8 and a Usb stick with a Disk Image and both dont work when i try to use them it tells me that they can't be used on ths OS i have.