Black Screen with Kernel Check Security Failure
I've had my PC for over a year without any problems. Today I updated my video card driver (4070 Ti Super) and went to play Marvel Rivals. After 2 minutes in the menu, my computer simply restarted without a blue or black screen or any apparent error. I opened Marvel Rivals again and the same thing happened after 2 minutes with the game open.
Suspecting it was the game, I checked the temperature and CPU and GPU usage and didn't see any errors, so I opened the game again and after 2 minutes in the menu, this time I got a black screen with some memory error that I didn't have time to read.
On the 4th attempt, I didn't open the game, suspecting that it was really the cause, but after 10 minutes on the Windows desktop with only Discord and Chrome open, I got another black screen, this time with the error titled "Kernel Check Security Failure," and the PC restarted again.
I'm creating this post quickly for fear of it happening again. Could someone help me troubleshoot and find possible causes? I've never had these problems before, and then suddenly it happened 4 times in a row.
Specs:
I9-14900KF
Asus TUF 4070 TI SUPER
4x 16GB DDR5 5600MT/s Kingston Fury Beast
Rog Strix Z790-H Gaming Wifi
Windows 11 25H2
Posted Jan 8, 2026, 2:51 AM UTC