Hi guys. I'm just wondering how to diagnose what is causing GSOD. I have a Windows 10 pc and I've been experiencing a lot of GSOD crash lately and I can't seem to know the reason why. It just randomly happens while gaming or even doing normal tasks. It crashes then restarts and goes directly to BIOS, and in the BIOS I cannot see my SSD on the boot options, but when I hard restart it, it will then boot to windows normally. Sorry for the vague post.