Bought this laptop used, the owner was selling it cheap because he claimed the graphics card (GTX 880M 8GB) stopped working. It's still detected by Windows, but it has a error code 43 and a little yellow triangle next to it in device manager. Ive tried re-installing multiple times and it still won't work. The owner claimed the problem happened after upgrading to Windows 10. My last attempt to fix it was going to be to downgrade to Windows 7, however; before I upgrade I wanted to see if you guys had any ideas?