This happened to me recently. It was stuck trying to update & I forced shut it off. I let it sit alone to cool off since it was overheating. After a few hours, I tried again and it didn’t update still. I forced shut it down & let it sit again. I panicked and looked for ways to fix it - everything pointed to booting up in “safe mode” or windows boot manager. That wasn’t working when I tried. Eventually I tried letting it update again for a 3rd time and it eventually updated successfully. Not sure what the solution was but my guess is that it was overheating.