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  4. How to Repair an Nvlddmkm.sys Error

How to Repair an Nvlddmkm.sys Error

March 31, 2015
By: Tyran DeWalt
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If you notice nvlddmkm.sys errors on your computer, a bad driver could be at the root of the problem. This error occurs on systems containing the nVidia graphics card. It is likely that the error message you are seeing reads: "display driver nvlddmkm.sys stopped responding…" The primary cause of the error is one or more misplaced files. Fortunately, you can clear this error and restore your system with a few short procedures.

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How to Repair an Nvlddmkm.sys Error
credit: AnaBGD/iStock/Getty Images

Step

Press "Windows-E" to open File Explorer.

Step

Double-click the letter that corresponds to your primary hard drive--in this article, for the sake of example, we'll assume that your primary hard drive is "C:". Navigate to the following folder path:

C:\Windows\System32\Drivers

Step

Locate the "nvlddmkm.sys" file. Right-click the file and rename it "nvlddmkm.sys.old."

Step

Click "This PC" in the File Explorer navigation pane. Click "Local Disk (C:)" in the right pane of the window.

Step

Type "nvlddmkm.sy_" in the "Search this PC" field in the File Explorer window. Press "Enter."

Step

Right-click the "nvlddmkm.sy_" file, and then click "Copy" on the pop-up menu.

Step

Press "Windows-R" on the keyboard. Type "cmd" in the Run box and click "OK."

Step

Type "chdir Desktop" at the command prompt. Press "Enter."

Step

Type "expand -r nvlddmkm.sy_ nvlddmkm.sys" and press "Enter." Close the Command Prompt window.

Step

Locate the file "nvlddmkm.sys" on your desktop. Right-click the file and click "Copy."

Step

Press "Windows-E" to launch File Explorer again.

Step

Navigate to the following folder path:

C:\Windows\System32\Drivers

Step

Press "Ctrl-V" to paste the nvlddmkm.sys file in the folder. Reboot your computer.

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