Ok, i'll try repair first...but if my pc is not listed in my account devices, the activation will
work as if it was a new machine?

Hey, Steve, thanks
I've already done the following:


sfc /scannow
dism /online /cleanup-image /scanhealth and /restorehealth
reinstall Windows from inside Windows (Downloaded the...

After the anniversary update, i can't create a new profile for a local user, which means this user can't log on (User Profile Service is not loading).And no, I do not have a restore point (a long sad...