Sooo, I have news.
SHORT VERSION: Windows might have deleted some files ???
I got another gpu from a friend and after replacing it the red lines disappeared, BUT the Windows was still looping around diagnostic. After searching on the internet it turned out that some of my system files were corrupted. I have NO idea how that happen, I was just browsing when my screen turned black. So what I did was I re-installed windows without formatting my SSD so now i still have access to my data. After re-installing I returned my old gpu and after windows installed the drivers my old gpu started working fine again. This problem was really strange, never happen to me before and never heard of something like this. I still dont know what was the cause?!? Did a stress test and everything seems to be ok. Thank you everyone for taking the time and trying to help!