I am also in need of an activation key as well. Ser4 4800U purchased thru Amazon 2022 as I am also fighting BSOD over and over since November 2025 and I have absolutely tried everything and everything was fine before November as I rely on this computer for much of my freelance work , which has now came to a absolute halt because of this. Including the fact of trying to do an upgrade from 32gigs of ram to 64, which never worked, so I now regret returning said 64 gig kit 6 months ago which was 100 bucks at that time. Regrets. Now I just need to reinstall my OS and hope for the best. Let me know if I need to provide my serial of my machine. Thanks