So i built my friend a gaming rig a few weeks ago and he decided to replace the R9 280 with a gtx770, He uninstalled the old AMD drivers and set to installing the new 770.
Card installed he started to download and install the latest nvidia drivers 340.52 and started to run into problems straight away.
During the install it would hang very close to the beginning of the process and then proceeded to stop responding leaving the only option to terminate the process with task manager (and thus leaving fragments of partially installed files)
After cleaning up the partially installed drivers with a driver sweeper, we booted into safe mode and tried to install using that... SUCCESS! (or so we thought)
Booting back into normal windows now none of his games will boot and steam wont even open. Also when trying to restart or shutdown it now just hangs on the 'shutting down' screen.
we removed the drivers using 'unistall programs' on Control Panel then cleaned everything up with 'Display Driver Uninstaller' but something still seems to be hanging about and causing a conflict (or at least that is what i can tell).
We tried to do a restore to like 2 days ago when he had the 280 but windows didnt seem to want to play ball (you know how it gets when its not getting its own way)
We're currently doing a back up of his games to do a fresh install but if we can find a faster solution in the meantime it would be greatly appreciated.