Winuser: Win 10TP?

I've tried creating a new user, this does not solve the issue.

Nothing helps. Ran sfc /scannow and Tweaking.com, still having the same problem.
I also noticed if I try to install CCleaner for example, that program isn't opening either?

Thanks for the suggestion but I'm not completely stupid :)
I work as a PC Technician so I know what commands to run to open anything Windows related.

TairikuOkami I'll try your suggestion, didn't...

Since I upgraded to Windows 10 Pro from Windows 8.1 Pro, I am unable to get my registry open.
I don't get any warning or error message when opening it. Just nothing happens. There is no background...