Blank Screen

Desk top W10 home,using computer ok and left it with advance system care running.About an hour later woke it up to see system care screen then the moniter went black and nothing I did with the key board brought it back so the stop button was pressed.I pressed start and the pc came back to life with the ''working' light blinking and the moniter flashed the start screen and went blank and then the windows logo flashed and went blank so after a minute or so I switched the moniter to off and then on and the password screen flashed on for a couple of seconds and went blank.The pc seemed to have gone through its cycle and everyone I switched the moniter off then on the password screen flashed on for a couple of seconds and went blank.checked the graphics card and do not think it is the moniter but the screen only flashes on for a few seconds and goes off only when I push the on/off button on the moniter.So anybody come across this and I might have to take it in for a diagnosis.

 

Sometimes disconnecting the Power supply from the PC. Then pressing the power on button a few times.
Reconnecting the Power supply and Power on. -works...
Good luck,
s.

 

Can you boot into safe mode with networking? If so, maybe reinstalling the graphics driver would fix the issue...