Question Gray screen of death when opening windows

Vokzel

Reputable
Mar 9, 2019
13
0
4,510
Hi, I recently built a computer from older parts (though I doubt it's anything hardware related) here are the parts


585 watt PSU
GTX 960
Core i7 4790 i believe
H97M-ITX/ac
2 tb HDD from Lenovo prebuilt
16gb ram
And an old blue case my parents call "blue dragon"

When i try to start the pc up, right after the motherboard manufacturer screen, it goes to a blank gray screen, then it turns to the user login screen and after that back to the blank gray screen. I can do CTRL-ALT-DEL but that's about it. I have tried unplugging everything and holding down the power button to remove the leftover power in the components but that didn't work. Right now im trying to do a system repair and its still going right now, but incase that doesn't work i would like to know any other solutions, Thanks!