Bought a 2nd hand laptop and had to get password off buyer. I did a refresh through settings and started downloading updates which went ok apart from 1 ( a graphics driver) which always fails, tried the Acer website but that's says I have a customized driver and can't update it. Anyway my main problem is every time I try to update to 8 it downloads fine starts to install then restarts but gets stuck at 82%. I've tried several solutions found on the web but none work. I was planning on just finding a win8 iso and doing a fresh install but I don't have a key on the bottom of the laptop. Does anyone have any ideas on how I can update or do a fresh install?