HP Laptop Black screen

njakuh Posts 2 Registration date Monday March 6, 2017 Status Member Last seen March 6, 2017 - Updated by Ambucias on 6/03/17 at 04:38 PM
Hie guys ,i have laptop hp 655 which is displaying black screen each time i switch it on.this started after i changed windows OS from seven to 8.1 .what could have happened guys.? help me guys