when I power on PC it shows a black screen with colored horizontal lines, when I press buttons it adds lines but I never get to BIOS or option to enter. It goes blank and comes back almost like it’s trying to restart. No error codes on motherboard. This problem has been existent since I changed from MBR to GPT and went to windows 11 months ago except it would do the black screen with colored lines then go to windows normally and always work never crash. Only way I could get to bios was by booting into windows then restarting and it would boot normally with 0 issues and no black screen with lines.