My Hewlitt Packard laptop (windows 10 64 bit) gave a light blue screen when I was using it all of a sudden with the message
"Your PC ran into a problem and needs to restart. We're just collecting some error info and then will restart soon (100% complete) If you'd like to know more you can serach online later form this error APC_INDEX_MISMATCH
There is no other info and the screen stays like that. cant be shut down . What to do please?