So, it seems that certain parts of my PC cannot detect my graphics card. I have an Nvidia Geforce GTX 850M card and Windows 8.1 64-bit. Everything was fine until I decided to update to the latest graphics driver, which, in this case was 359.06. In the middle of installing the update, my computer crashed and I got a blue screen of death with the error message being "DPC_WATCHDOG_VIOLATION". I left home and came back hours later and started up my laptop with no issues. However, when I started up a game, I got horrible performance. I concluded that my laptop had decided to use integrated graphics, so, I tried to open my Nvidia control panel and I got an error message reading "Nvidia settings are not available, you are not currently using a display attatched to an Nvidia GPU" and the Nvidia control panel wouldn't open. I followed the steps on this forum post to try and fix it:
http://www.tomshardware.com/answers/id-2037914/nvidia-display-settings.html
but that didn't work either. I even tried reverting to a previous driver, but that didn't help at all. So now I am stuck with a PC that can't run anything above 5-10 fps. When I press windows+r and go to dxdiag, there is no mention of my graphics at all until the 3rd tab ("Render" tab). I'm not sure if it is supposed to be like this. Also, if I go to my Geforce Experience, I can install drivers, but it says that my system lacks the Geforce 850M. Is there any way to fix this? Also, my laptop model is an ASUS ROG G56JK if that helps.
http://www.tomshardware.com/answers/id-2037914/nvidia-display-settings.html
but that didn't work either. I even tried reverting to a previous driver, but that didn't help at all. So now I am stuck with a PC that can't run anything above 5-10 fps. When I press windows+r and go to dxdiag, there is no mention of my graphics at all until the 3rd tab ("Render" tab). I'm not sure if it is supposed to be like this. Also, if I go to my Geforce Experience, I can install drivers, but it says that my system lacks the Geforce 850M. Is there any way to fix this? Also, my laptop model is an ASUS ROG G56JK if that helps.