I broke my laptop HDD, it freezed and it didn't wanted to boot. I made errors (bad blocks), and I reinstalled windows. After 3-4 days I punched it because of some annoying game and I got pissed off, but I got screen glitch. When I restarted laptop, it didn't showed anything, not even bright screen, it was black. I restarted it again and it worked. When I press a little bit hard over touchpad, or move laptop a little bit it gets glitch and freezes until I restart it. I will buy SSD but I don't know if it is GPU, CPU or RAM error.