Big glitch. Crashes whole computer.

When i start my minecraft, OR download new minecraft version, WHOLE computer freezes. No error messages, nothing. Minecraft screen is black, and stays black, the latest console input is Starting sound engine thing.
When the window appears, 2 seconds and BAM, computer freezes, mouse too. No input working, only power button.
Is anyone else having same issues?
It has worked before, but when i opened it one day it just froze... PLZ help...
It freezes with EVERY SINGLE version.