Ok so... i did NONE of what you told me to do, let me explain...
first i went to my second pc and updated that one first to see if the same green screen thing will happen and it DIDNT, phew..
i used the windows assistant download link you sent and updated my second pc through that and it worked, then i was like... lemme just
try the same thing on my laptop! (the one that suffered the god awful green screen loop thing) for some reason i kept thinking what if i use the link instead of directly updating from the settings... and it WORKED. i did it! no more green screen loop (lets pray it wont come back to haunt me) but yes, and whatever you told me to do, i apologize, my nonexistent tech brain couldn't handle it, but i thank you for your help. IF however, i ever come across any issue again, i shall return... until then, farewell.