Are you using the Nvidia video card on your Windows 11 or Windows 10 PC? You may face a blue screen error pointing to the file nvlddmkm.sys. The cause of the nvlddmkm.sys error is mainly the drivers from the video card that needs to be updated or reinstalled. The error may contain several codes such as Video_TDR_Failure, System Thread Exception Not Handled, or SYSTEM_SERVICE_EXCEPTION. If you are unable to fix the issue you can follow our guide.
What is nvlddmkm.sys?
Nvlddmkm.Sys stands for Nvidia Windows Longhorn Display Driver Model Kernel Mode. It is a driver that makes communication between Nvidia GeForce graphic card and the Operating System.
Some variants of the error:
- nvlddmkm.sys failed
- video tdr failure nvlddmkm.sys
- nvlddmkm.sys bsod
- nvlddmkm.sys system_thread_exception_not_handled
- system service exception nvlddmkm.sys
- page fault in nonpaged area nvlddmkm.sys
- nvlddmkm.sys nvidia corporation video_tdr_error
- driver_irql_not_less_or_equal nvlddmkm.sys
- kmode_exception_not_handled nvlddmkm.sys
How to Fix nvlddmkm.sys Error in Windows 11/10
Method 1: Download the latest driver
You need to go to the Nvidia website.
Choose your graphics card model and proceed to download the latest driver.
Now start the installation process.
Select “Custom installation” at the second stage, and then check the “Perform a clean installation” checkbox.
Method 2: Lower the GPU frequency
Return the default settings if you did overclock. In particular, underclock the GPU.
The easiest tool to lower the GPU clock speed is MSI Afterburner, which you can download here.
Once the installation process of MSI Afterburner is complete launch the MSI Afterburner Tool
Now search for a slider that shows Core Clock.
Using the slider you can adjust the GPU frequency.
Apply the settings and restart the PC.
Method 3: Completely Uninstall/ Re-Install Graphics Card Drivers
To uninstall graphics card drivers you need to use Display Driver Uninstaller (DDU)
Firstly, download DDU from the official website.
It is recommended to run the program in safe mode so that the cleaning is complete and no busy process interferes.
Unpack and then run Display Driver Uninstaller.exe.
Choose the manufacturer of the card (Nvidia, AMD, Intel etc) and the program will show three options:
- Uninstall and Restart: This option removes the driver and restarts Windows.
- Uninstall without reboot: This option is not recommended if you are loading the basic Windows driver.
- Remove and Power Off: The best option for installing a new graphics card.
Select the option that suits your scenario and you’re done.
The DDU tool will apply the required settings and will remove the drivers from the system.
Now head over to the official website of Nvidia, AMD etc to download a new driver for installation or you can check for updates in the Windows center.