The worst service in the world ... HELP YOURSELF A...

The worst service in the world ... HELP YOURSELF AS SIZE !!!! The story is called LAPTOP PROST - SERVICE AND MORE PROST. in the first 6 months after the acquisition the motherboard was burned, it was taken into service (they changed the motherboard) and then to take it as broken, you go to the service once more ... so they changed the motherboard base twice plus video card .. after 11 months what to see begins to have temperatures of 100 degrees at the processor, go back in service and after a week to tell you that it is because of the upgrade from the branch on which I did it ... (the laptop operating in normal parameters until that moment), I kept silent I took the laptop home .. also with 100 degrees the laptop works .. after a month a month half problems and .. this time the applications like google chrome, word, discord, etc. they see black ... the clear problem of the video card, went to the service after 4 days they call me at the service to announce that it is from windows and that they are working in their normal parameters (I wonder if they have even opened a program specified by me to see that it works ...) I get home I install the windows as they told me, namely in UEFI and not in LEGACY, the installation is finished, the first 10 minutes what do you think? black chrome, black exp geforce ... no need to install other programs .. tomorrow another visit to the service, maybe I can give a technician to illuminate me how to repair a windows installation a faulty video card .. .