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Laptop Model : Asus N46VZ OS : Windows 10 what i change in BIOS settings are : Launch CSM - Disabled Fastboot - Disabled Secure Boot - Disabled after that, i press F10 to save changes and exit. laptop will restart, but when restart i got black screen. Keyboard light, Notification Light all lights up, Fan is running. what is the possible cause ? is it VGA ? or something else ? how to fix this problem ? thank you very much.

Hello everyone I own an alienware 17 r1 with windows 8.1, upgraded to a gtx 970m. I did the upgrade in december and worked fine with the driver 359.0 that i modified back then following the video guide down there. Today I decided to upgrade the driver to the last version, 364.71, and followed the same steps. After the reboot required by the installer, i see the Alienware logo and then the screen turns black, with only the mouse cursor visible. If i manually shut down the computer and then boot it the same thing keeps happening. I re installed windows 8.1 and tried with the same procedure to install previous version of the dirver, but non of them worked, even the 359 that worked perfectly until this morning. I did all this with windows fresh installed and no updates. I can't download custom drivers from j95 post since I haven't posted enough on the forum. Can anyone please help me?