How to Fix Nvlddmkm.sys Error on Windows 10

An Nvidia Graphics card which comes under the Windows Driver class is known as NVddmkm.sys. Creating an interface between the Operating System and NVIDIA Graphics card, the NVddmkm.sys is a Kernel-Mode Device Driver. Do you know that there is not only one form of NVddmkm.sys error? Yes, it exists in numerous forms such as nvlddmkm sys BSOD, video_tdr_failure nvlddmkm.sys, nvlddmkm.sys driver_irql_not_less_or_equal, etc. If your PC has stuck in any of the above forms, this article is particularly meant for you.


What is nvlddmkm.sys (nvlddmkm sys)

The video_tdr_failure nvlddmkm.sys is basically a Video TDR failure which administers the Nvidia Graphics card driver and display. What TDR means here is Timeout, Detection, and Recovery! In such cases, not only the BSOD, i.e., Blue Screen of Death appears, but also extensive delays have occurred.

Are you thinking it is a big problem caused by your PC? Then, you are absolutely wrong as nvlddmkm.sys error not only occurs in Windows 10. Despite the fact that this error has been taken back since the time of Windows 7 and Windows 8. In most of the cases, the error has been occurred due to the Nvidia Graphics card in either the PCs who are recently updated to Windows 10 or it has got a new driver installed.

What Causes Nvlddmkm.sys Error on Windows 10

The bad voltage, driver conflicts, incorrect memory timing, installation of corrupted drivers, overheating, bad graphics card, etc are the main causes of the nvlddmkmIt. What happens in this scenario is that the PC assumes due to the low frame rate, your graphics card is not responding, and the program has taken control over the TDR.

You need not worry about this as it is a very common issue. The causes behind such an issue can be either due to the inappropriate power supply, RAM, temperature, or card. In such a scenario, your PC states that there is something wrong with the graphics card; thus it is unsure about it.

Now, the question arises, how the user will come to know that his PC has been affected by the nvlddmkm.sys error? If your PC’s screen distinguishes for a few seconds and restarts back from starting, then your PC is sure to have the nvlddmkm.sys error.

This issue does not irritate the user in case it happens only once, while if it initiated occurring again and again, then the user will be unquestionably irritated. According to numerous reports, it has been reported when the user is either playing a new game or watching a video. Also, the blue screen of death can be encountered even when the user tries to login and it happens after 10 seconds. Thus, getting rid of such a problem is crucial.

How to Fix Nvlddmkm.sys Error on Windows 10

Just try the following methods and get your issue solved. But for performing the below methods, you need to put your PC in safe mode. For that, your PC will ask for the login. In case you don’t remember, then perform the hard reboot of your PC by rebooting your PC thrice and putting it in safe mode.

Method #1 Nvidia Graphics Driver Clean Install

Does your PC contain a graphic card? Then, there is a high chance of the error being occurred due to the corrupted graphic card. In such a case, a VIDEO TDR error is encountered, thus causing the BSOD. For fixing, you just need to reinstall the driver. Don’t know how to do? Just follow the respective steps.

Step 1 – First of all, download and install the DDU, i.e., Display Driver Uninstaller.

Step 2 – Now, choose the recommended safe mode by the Display Driver Uninstaller.

Step 3 – Once it is completed, press the launch button to activate it.

Important: If you are a Windows user and don’t remember your password, then reset your password. The PIN would not work in such a scenario. If you are unable to get your password in any way, then quit this method.

Step 4 – Further, press the “Clean and Restart” button. As soon as you press it, it will restart your PC and remove the display graphic card driver.

Step 5 – Then, press the Windows and X keys simultaneously.

Step 6 – Now, choose the Device Manager.

Step 7 – Later on, seek if any changes are made in hardware after pressing the Action button.

Step 8 – Finally, click on the Install button to install the updates which are available for your PC.

Method #2 Rename and Copy the File nvlddmkm.sys

Step 1 – First of all, the latest Nvidia drivers need to be download and installed on your PC.

Step 2 – Now, you need to open the Drivers folder on your PC.

Step 3 – After that, search the file nvlddmkm.sys and rename it to nvlddmkm.sys.old.

Step 4 – Further, search nvlddmkm.sys in the Nvidia directory.

Step 5 – Then, copy nvlddmkm.sys file and paste it on your desktop.

Step 6 – Once pasted, press the “Start” button.

Step 7 – Later on, open cmd and by searching it in the search bar.

Step 8 – When the command window is opened, type the following command by pressing Enter after it.

Chdir Desktop

Step 9 – Further, type the following command. Don’t forget to press Enter after typing a certain command.

Expand.exe nvlddmkm.sy_nvlddmkm.sys

Step 10 – Now, copy the nvlddmkm.sys file from the desktop and paste it in the Drivers folder.

Step 11 – Finally, you need to reboot your PC.

Once the reboot is completed, inspect if the errors forthcoming have been rectified. In case it is not, then step-up to another method.

Method #3 Update the Nvidia Graphics driver

Is your issue not solved by the driver re-installation? Probably, it might be due to the inappropriate selection of the driver, which sends your PC into a deadlock state. Thus, your PC can rid of this deadlock either by getting the driver updated automatically or manually.

The manual updating of drivers is a tedious task and requires visiting the manufacturer’s site for downloading relevant video card drivers. Hence, it is suggested not to update drivers manually. Still, if you want to do, then find and download the appropriate version only, which is compatible with your windows 10. There arrives a situation also where you need to roll back the driver.

Method #4 Check Memory Modules

Is the nvlddmkm.sys the error not solved even by updating drivers? Then, you should try checking memory modules as the unstable operation of the PC memory strip can also cause the error. In case there are numerous interlinked strips in your PC, then you can choose and try using any one of those strips. Examine if the error is sorted out. Is the error resolved? If not, then that connected strip didn’t have any fault; else the fault was with that strip only. The Memtest86 level, i.e., a special tool can also be used for testing of memory.

Method #5 Deactivating System Overclocking

Many users have even reported that the overheating of the entire PC system also causes the nvlddmkm.sys error. As the PC overheating is due to the artificial overclocking, you can get rid of this error by either deactivating the overclocking in BIOS or disabling the overclocking programs.

Method #6 Engage A More Powerful Power Supply

In case the nvlddmkm.sys error is not sorted out by checking memory modules or deactivating the system overclocking, then you must certainly try using your PC to get activated through the higher wattage power supply. According to numerous reports, this solution solved nvlddmkm.sys error in most of the user PCs. Hence, you can also get your issue solved by providing enough power supply to your PC.

Method #7 We Use the Functionality of the Utility CHKDSK

The nvlddmkm.sys error can also be solved by checking the hard drive if it has any errors. The functionality of chkdsk utility is used for checking it. Certain steps can be followed in order to perform so.

Step 1 – First of all, open the command prompt on your PC.

Step 2 – Now, you need to type chkdsk / f c: in the Open box.

Step 3 – Once typed, press the Enter button to proceed further.

Step 4 – Finally, wait for the verification process to get complete.

Does it show any error? If not, you have a great memory card in your PC, which does not let the nvlddmkm.sys error to happen. In case, it shows an error, then there is unquestionably something wrong with your RAM card. In such circumstances, it is suggested to replace it with the new RAM card. The error message would not appear for sure if you followed all the above steps fruitfully.


We hope that the above-mentioned steps have solved your issue. In most cases, the problem gets solved either by using the high wattage power supply or by maintaining your PC at a lower temperature. However, if it fails to do so, the above-mentioned steps will definitely solve your problem.