I was upgrading my graphics card from an amd 7700 to a nvidia gtx 970 (everything was compatible) and I guess I installed the nvidia drivers wrong or forgot to uninstall the amd drivers and now I get to the launch windows normally or scan for problems screen. When launching normally it only gets to the starting windows screen then shuts off immediately after. If i scan for problems it says that it cannot fix it automatically and if i try to revert it back to a previous instance it fails. I tried putting the old card back in and same thing happens with either the new card or the old card.