FrunK said:


I try to install HP Drivers, uninstall previously and clean with DriverSweeper, bars again...

I try to install latest driver from nVIDIA, uninstall previously and clean with DriverSweeper, bars again...

I make a memtest with the bios utility, and all is ok.

I cant run furmark, because I cant start windows with the nv drivers....

so now you have eliminated the software (drivers) wee looking at a hardware issue as we suspected or a screen issue , as its a laptop i cant really help from here it seems you may need a replacement motherboard (onboard gpu)