shezame

i hate to do this, but i install the driver fine, i can watch movie tru my hdmi but when i lauch bf4 its lagging really bad, and it was not lagging before i had the problem and had to reinstal my card, my other games are laggy as well. any ideas? - - - Updated - - - also hd video lag really bad as well

tanx a lot, i got it to work, the problem was i did not have admin privilege, again thank you, you been - - - Updated - - - huge help great forum

bcdedit /set {current} testsigning no is that the one to disable the sign in or is the one finishing by yes?

yes i think i am, im the only user.

ok, i dont have an anti virus, just windows defender witch i just disabled and tried to uninstal again, same error come up. finished downloading the new driver and i changed the nvdmn file with yours, it goes tru the hardware check but failed after instalation start, for the command prompt i did wat u said but it happens so quickly that i cant see if its succeed or not anyhow i did reeboot and try the drivers again and still the same problem.

im under windows 8, just tried what you suggest and it did not work, im trying to instal the 331.40 should i try with the 331.65? - - - Updated - - - also the Display Driver Uninstaller failed during the process and it said send the log to the dev

hello all, i have download the driver 331.40, replaced the nvdm file, when i lauch the driver install it passed the hardware check and once the instalation begin it looks like if it was working but the the instalation failed. please help my system: alienware m17X r2, geforce gtx 680m - - - Updated - - - Sorry for posting again, also did not Uninstall current drivers as i dont kno how its done, now my computer reads my grapgic card as non existent.