I was on Discord with him last night before playing Arc - I can definitely confirm this is bigger now than a NVIDIA driver issue.
Sludig
needs a complete wipe and reinstall of his OS. He also had a friend fucking around with Anti Cheat software in the registry while trying to get BF6 to function - so no idea what that person did there. Even safe mode was running into error issues and even had search delay in the Desktop of up to 5+ seconds or never appearing, and barely got it back (After multiple attempts). Also couldn't uninstall the Nvidia App in safe mode without errors all while internet disabled. I was thinking DDU but this goes far deeper with whatever that other guy did when BF6 didn't run correctly.
More crucial are his pictures and data - but I do not want him even using anything on that drive from anything other than a data hold (Or throw it in an enclosure) and do a complete OS wipe and install and everything fresh (Chip set drivers, Nvidia, even Steam and game downloads)
What is sad is that he could have grabbed a 4tb 990 Samsung m.2 from Amazon in September for the price of what a 1tb is now.... Glad I bought mine as secondary when I did. $166 in September for a 4tb 990, now its up to 899....
We ran basic hardware tests and he is good. This is definitely a fucked OS. (His BIOS rev is also only n-1)
This OS was messed before all this but what more than likely made it implode was when his buddy fucked around with kernel level anti cheat in the registry.