So just last week I bit the bullet and bought Windows 8.1. I was very happy about it, until it started not working correctly. First of all, when re installing my programs, I had to restart my computer a lot. Many times out of these restarts it would sit at the restart screen and then I would BSOD. The error I would get is called DRIVER_POWER_STATE_FAILURE. I have got this numerous times now and it is really starting to make me mad. Does anyone know how I can fix this problem cause I am very close to going back to Windows 7. Thanks everyone!