I have a laptop that has the Nvidia Geforce GT 740m 2GB GDDR3 graphics card. When I enable the device in Device Manager and play a game, my whole laptop crashes and doesn't boot unless I boot it through Safe Mode. Right now I have disabled it and I was wondering if I could enable it and use it without making my laptop crash. I'm running Windows 8.1 on a Toshiba Satellite. P.S If you could, can you please tell me the issue and whether its possible to fix. Thank you in advance!