One time I was playing modded Skyrim when it froze/crashed at the loading screen

So I summon task manager, it hides behind the frozen game. I alt+tab and start blind keying to Skyrim to end it, been here hundreds of times, but nothing happens and the Skyrim world music STARTS???!!!

ALT+TAB to see TM and Skyrim both reporting non-responsive. Tab to Skyrim and press w, clearly hear character moving and reacting to my input

Try again to end process via ALT+F4, No dice. Try via TM, still unresponsive

I had to reboot my PC with a hard power button press that time and I still don’t fully understand what the FUCK happened