My uncle gave me this old pc with an intel i7 920 cpu, a gigabyte geforce gts 250 gpu, 4g ddr3 ram in the gigabyte GA-X58A-UD5 motherboard. The pc was running win 7 when i got it but i upgraded it to win10. Since then when I press the power button it will load into windows and after 10-20 seconds the screen will glitch and then freeze. I am not able to downgrade back to win 7 because the one month period has expired. Sometimes when i try to open it in safe mode the screen will glitch again but wont freeze. I have tryied booting in multiple different monitors with multiple different cables and the problem is not caused by the monitors witch work perfectly when i connect them with other devices such as my laptop. I tryied instaling the latest version of untutu linux from a usb flash drive and the same thing happened. It loaded linux and after 10 seconds the screen glitched and froze. The installer works perfectly fine when I open it on another computer. At this point i dont know what else to do and im trying to find a solution via the forum. It would be highly appreciated if someone could tell me what the problem is. Thanks for hearing me.