Black screen after updating nvlddmkm.sys file

[GovernmentChese]

I currently own an Alienware X51 (8Gb RAM GTX 660 OEM i7-3770 Windows 8.1).

Last night I followed the instructions of this guide http://us.battle.net/d3/en/forum/topic/15700040439 to fix the nvlddmkm error, but the screen went black some seconds after booting up my computer and the mouse cursor kept flashing and jumping to the center every 4 seconds; I couldn't even log in.

I tried to set the integrated graphics card as the primary gpu in the BIOS. Furthermore, after many tries of going into Safe Mode, the Alienware icon and settings—at startup—stopped showing up completely. Now there's no signal on my monitor until the Power-On Self-Test is done (before the beep) and the black screen persists.

Could you please help me find a solution for this issue?

Thanks in advance.

 

[GhislainG]

Why didn't you update to the latest NVidia drivers? The link refers to drivers from 2010 while Windows 8.1 NVidia drivers are dated May 2015 (version 352.86 on my system). What version did you install and how did you ensure compatibility?

 

[GovernmentChese]

I installed the 352.86 update but accidentally changed the nvlddmkm.sys file in Windows/System32/drivers for a previous version.

 

[GhislainG]

Is your issue resolved?

 

[GovernmentChese]

It isn't.

 

[GhislainG]

You shouldn't select a best solution until the issue is resolved.

You didn't have to set the integrated graphics card as the primary; removing the NVidia GPU and connecting the monitor to the motherboard should have been enough. Did you try resetting the settings to factory defaults? Since you can't see the display, disconnect the PSU and remove the battery for several minutes.