You restore the machine to its factory OS?
Got a problem with my screen. It flickers randomly (a lot). But it works OK in Safe Mode. The PC had not been used for a month and that's when it started. The screen recovery is set at 60hz and it is not a loose connection (I guess) Have run all sort of Antivirus, Malwarebytes, Registery Booster,and didn't find anything.
Anybody out there with an idea?