I can't run any program as administrator on Windows 8 Enterprise, 64 bit. I'm the only user and administrator. All programs that I've tried now, simplest notepad through gravest cmd, run smoothly as 'normal' none as admin.
I've learned from an earlier answer here that sfc/scannow can run without elevated cmd in safe mode, but it didn't help; it's result is in a log file, but now I was denied of access to open it. I also tried 'Automatic Repair' which too detected but couldn't repair some corrupt system files. I've also run MS Fixit and Tweaking Window Repair in vain; Reimage halted at 2% several times.
Furthermore, I've run Malwarebytes and Exterminate it! deleted what they found, but still the same.
Otherwise the laptop works perfect and I can't clearly define what I can or cannot do of what requires administrator privilege.
Thanks for any help.