i have problem with installing nvidia 740m driver on windows 8.1 x64
bios ver A11
only intel driver work - same as everyone else
i tried driver version from dell and nvidia website
still no driver for 740m
wheye everyone have this problem and still no good solution on dell website ?
In my case I had the same problem and tried several different drivers for Intel HD 4000 and for nVidia GT 740m with no success.
At last I downgraded the BIOS from A11 to A10 and my video and touchpad came back to normal.
Hope it helps you.