stop code system thread exception not handled.. after reboot its on...what should i do now?

tryed that allready didnt help..

its true that some updates make it wors some not, some make it better...

the strange thing ist some games run forever some force it
if i just start my pc and do nothing it freezes in the passwordwindow if i do nothing...

it gotten a bit better after iam used to it and start a steam game in the background then my pc runs without end, sometimes i can shut that game down, and the pc runs without problems, sometimes i shut the game down the pc shuts down to,

but what i can say it shuts down if i do nothing if i dont move the mouse or while i type in chats... and no game no onlinevideo is running in the bakc

i have given up, this problem is W11 realted and still unfixed, since W11 came out, i never had a problem under W10

no and microsoft service dindnt even tryed to help...
i changed everything on my hardware, exept the cpu and the board... still the same issue... it got better as i installed a bigger powersupply, but is still there...

I use an Asus Vivobook Ryzen 3 laptopI use an Asus Vivobook M409 Ryzen 3 laptop, so at first I just opened Chrome then something seemed odd, then I restarted then suddenly the blue screen "SYSTEM THREAD EXCITED NOT HANDED" I have tried various methods but the blue screen returns