Try to update the BIOS too
Also, run system file check to see if everything is ok
Go to start-->type in search box 'cmd' and run it as administrator-->in cmd window command type in sfc /scannow (space between sfc and /)
I hope it's not hardware failure, what a waste!!!
Also, when u update driver
, don't use automatically update function of device manager. Instead, un-install device drivers
from device manager, then download and install fresh copy of the driver