I guess that this irritating nvlddmkm.sys BSOD crash bothers quite a few people, so in the next few minutes I’ll explain how to permanently solve this error. I’ve researched this topic for quite a while so this is going to save you a lot of time and frustration.
About this file
It is part of your Nvidia® display driver installation, and it is located under the following path: C:\windows\system32\drivers
Description of the problem
Blue screens of death crashes (STOP errors) associated with this file usually occur on all popular Windows platforms: XP, Vista, and even Windows 7. Crashes might occur randomly or at different situations such as immediately after installing Windows, while trying to install new video display drivers, or while playing video games.
Other reported problems related to this nvlddmkm.sys are that it involves in slowing down Windows startup process.
Source of the problem
The good news is that there’s one general point of failure that causes this problem – that is a driver(s) problem. I deliberately wrote driver(s) and not just ‘driver’. Indeed the first and most obvious possible point of failure is your Nvidia® display driver; however it might be another problematic driver such as a motherboard driver that might be causing all that trouble.
From some reason your Nvidia® display driver and/or one of your other system/motherboard drivers are either obsolete or corrupted.
How to solve the nvlddmkm.sys BSOD
Warning! - Don’t manually try replace that file under any circumstances by another one. Many users try to download that file from random sites, and then they experience other problems. It just doesn’t work that way.
In order to solve the problem you need to make sure that your Nvidia® display driver as well as all your system drivers, and motherboard drivers aren’t outdated/corrupted, and if so, replace them with their ‘healthy’ and most updated versions.
Doing that manually is a time consuming, too risky, and inaccurate task. (You can never tell which are the most updated and exact required drivers). Anyway, I found that the safest (and by far the fastest) way to replace those problematic drivers is by using a reliable drivers repair tool.
To summarize - in order to repair this nvlddmkm.sys BSOD run a quick drivers scan and at the end see which drivers are causing this error, then install their latest, official, and most updated versions.
A little request...
Since each of you got a differently configured OS, I’d like to know the exact symptoms that you encounter with this problem.
Feel free to post this information at the bottom of this page. Thanks.