Hello everyone, I decided to create this post to share the solution I discovered regarding the good old display driver "nvlddmkm.sys" that crashes a large number of our computers and that "NVIDIA" has yet to fix (and let's be honest, when you haven't had the time to back up, it frustrates quite a few people ...) This crash often manifests as: - Screen flickering (small flashes) - A screen that "freezes" (stuck image) - A completely black screen and a return to Windows Indeed, it sometimes happens that we stumble upon pseudo-solutions (incomplete, poorly explained) or solutions that are too complicated for most of you. I will outline my solution while trying to be as clear as possible. Procedure to follow - First part: - Go to the NVIDIA folder => C:\NVIDIA - Search for a file named "nvlddmkm.sy_" => C:\NVIDIA\DisplayDriver\ "Driver version number (e.g., 186.81)"\International\Display\nvlddmkm.sy_ N.B: The access path may, of course, vary depending on each computer. - Copy the file to the root of C:\ => C:\nvlddmkm.sy_ Procedure to follow - Second part: - Go to the system folder where the drivers are stored => C:\Windows\System32\drivers\ - Once in this folder, search for the defective "nvlddmkm.sys" file and rename it to "nvlddmkm.sys.old" Procedure to follow - Third part: - Open the MS-DOS command prompt => Windows key + R > type "cmd" - Once the command prompt is open, type the following commands: 1) "cd\" then press enter (to navigate to the root of the hard drive => C:\) 2) "expand.exe nvlddmkm.sy_ nvlddmkm.sys " then press enter This last command allows you to decompress the "nvlddmkm.sy_" file that you placed at the root of C:\ and transform it to create the new "nvlddmkm.sys" Now go retrieve it => C:\nvlddmkm.sys And replace it in the folder => C:\Windows\System32\drivers\ All that's left to do is restart. I hope I have helped you. Don't hesitate to contact me if you have any issues.

Nvlddmkm.sys (nvidia) finally the solution!!! : CCM

Réponse 1 / 77

ratus

None of the solutions presented here worked for me....
I almost bought an ATI instead of my NVIDIA because none of the solutions on the internet worked: for your information, after switching from a Gainward GTX 560 that had no issues, to a GTX 660, as soon as I installed it, whenever I put my PC to sleep, I had a black screen upon waking up, at first occasionally but after messing around with my registry and other tips from the internet, I had this problem ALL THE TIME!!!!
And yet I found the solution to this problem after spending hours searching and testing various solutions with no results

It's very simple:

1. download DDU (Display Driver Uninstaller), it's free
2. reboot the PC in safe mode, then launch DDU, choose the uninstall and reboot option and select the option "prevent Windows update from automatically installing drivers" (at the bottom right of the window)
3. after reboot download the free software from Resplendence Software - Registrar Registry Manager Free Home Edition
4. search using this software for ALL NVIDIA entries in THE ENTIRE REGISTRY
you can do this with the Windows registry editor but it's longer

- indeed, DDU does not remove all entries, so this has to be done manually -
- - - - AND IT'S THESE ENTRIES THAT CAUSE THE PROBLEM!!! - - - -
5. delete them unless they are links to paths of 3D software (3dsmax for example or Maya), I don't know about games, I don't have any
6. reboot the PC
7. install the latest NVIDIA drivers
8. test

For me, it works....NICE!!!!!!!!!!!!!!!

Good luck to you ;)

ratus

Serdar75

Hello

How can we find the NVIDIA entries, which directory should we go to and how can we identify them?
Thank you

Drew > Serdar75

I would like to know why it is not explained either.

Réponse 2 / 77

tony06153 Posted messages 70 Status Membre 101

If this solution didn't help you, there's a small thing left to try...

Add two dword keys in the registry:
Code:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers]
"TdrDelay"=dword:00000005
"TdrDebugMode"=dword:00000003

For those who prefer not to take the risk, I found a "reg" file that will make this modification for you:
http://www.megaupload.com/fr/?d=WTJ7LS58

tony06153 Posted messages 70 Status Membre 101

A small clarification: You must run the command prompt as an administrator

Traüma > tony06153 Posted messages 70 Status Membre

Thank you for your help, it's a shame that it didn't solve my problem, although I believed it would =(
Apparently my graphics card is dying soon =(
Thanks anyway for the provided solution ;)

CéCéZ > tony06153 Posted messages 70 Status Membre

Hello, I have a problem in the command prompt when I enter: cd \ (backslash) it puts a caret between: ^/

CéCéZ > tony06153 Posted messages 70 Status Membre

Re hello, I think the solution worked for me too. Huge thanks to tony06153 : )

Réponse 3 / 77

tony06153 Posted messages 70 Status Membre 101

To have the command prompt in "admin" mode, it's not enough to be an administrator on the PC. To be sure:

Start > All Programs > Accessories > Right-click on "command prompt" > Run as administrator

Then try the operation again.

As for the .reg file, once the file is saved, you just need to double-click on it and accept the modification.

LowMan

Hello, thanks for the tip, it works but the problem for me is that it comes back (always the same). What's wrong with my computer?

BornToWard

It's WORKING, no freezing reported for 2 days with my Aurora R4. **Small note**: I performed this action in safe mode and then rebooted normally (I then exposed myself to a problem: the games won't launch anymore, no worries, update your graphics driver! Note that I also made the regedit change with the value "20" (search for nvlddmkm on YouTube, you'll find what I'm talking about).

binss

Hello Tony,

Thank you for your response, but I have a problem, I can't find the nvidia folder in C:/
Should I install it or how should I proceed?

Thank you for your reply.

Draglek

Hi! Everything was working for me, but after the reboot, it seems like my GPU isn't even recognized. When I try to start a game, it tells me I need to install DirectX 9! The same in my Nvidia control panel, there's nothing! Just two simple tabs with which I can't do anything! Hellp :'(

faburs

Hello, is there a space between expand.exe and nvlddmkm.sy_
I did everything you said and it doesn't take the file.
The root of the hard drive is indeed C:/ and not in windows afterwards?
Thank you.

Réponse 4 / 77

tony06153 Posted messages 70 Status Membre 101

Hello,
Did you place the file "nvlddmkm.sy_" at the "root" of your hard drive???
If so:
- in the command "expand.exe nvlddmkm.sy_ nvlddmkm.sys " don't forget the space (expand.exe nvlddmkm.sy_(space)nvlddmkm.sys)

Here is the image that confirms the correct functioning of the command:
https://imageshack.com/

elgringo87 Posted messages 3 Status Membre

Hi

I've tried your method, the problem is that it won't decompress the file and I don't understand how to copy the file nvlddmkm.sy_ to the root and how to get the transformed file from the root

because it tells me that it is impossible to open the file nvlddmkm.sys.

armand14100

Bonjour, j'ai le même problème, elgringo 87, explique-moi s'il te plaît le terme "copier à la racine" et comment on prend le fichier transformé.

Sandra

Hello,

It says: Unable to open the output file: nvlddmkm.sys.

Thank you! : )

Gatwo

Hello! Same problem...

Cécé

Hello, I also have this problem
Unable to open the output file: nvlddmkm.sys.
Is there a solution or should we give up on your method (which seems to be very effective)?

Réponse 5 / 77

tony06153 Posted messages 70 Status Membre 101

""ACER" is just a nickname... Your reader is really the reader C:\...
Have you run the command prompt as an administrator?

Réponse 6 / 77

Mao

Hello everyone!!!
After several attempts, I'm back to the nvlddmkm.sys issue.
Like millions of people, I've tried all the solutions provided, such as downclocking with RivaTuner, decompressing nvlddmkm.sy_, removing a RAM stick, changing certain values in the registry, etc... in short, all possible solutions.
After a long search, I'm sorry to share this link which, after reading, made me understand that my graphics card was faulty like several models from Nvidia.
So, I only say to those who hear me to believe me, but for now, for me, Nvidia is over.
.
Here is the Nvidia scandal link
http://www.cpolitic.com/cblog/2009/01/11/droit-du-consommateur-le-scandale-silencieux-des-puces-graphiques-nvidia/

Thosmain

I totally agree with you!

I had the same nvlddmkm.sys issue on Windows 7 with 2 different NVidia graphics cards (8400GS then a 210) regardless of the application running (demanding or not). After many unsuccessful attempts to fix those *$$*+## BSODs, the revelation came to me: I BOUGHT AN ATI CARD !!!! ;-)

And since then, no more problems...

Réponse 7 / 77

Hiruma

Personally, I have a Packard Bell with a 9500GS graphics card, video games work well, but I could no longer play videos.

The solution provided at the beginning worked, thank you!

Réponse 8 / 77

cyrilto

Thank you very much for your tip; I had this type of message indicating an error regarding "nvlddmkm.sys" when starting Vista, which only allowed me to boot in safe mode. I carefully followed your instructions, and upon restarting the system, everything worked perfectly. Thank you again.

LX terra64

I have exactly the same problem as you. When I turned off or restarted my computer (an Asus ROG G20), it showed a boot error and wouldn’t launch Windows (it also displayed the infamous error "nvlddmkm.sys"). So right now, I’m completely resetting it (since my disk space is full, I can't do a refresh ^^) and I’m going to test this solution while keeping my fingers crossed! :3

sephiros932 Posted messages 1 Status Membre > LX terra64

I am also on the G20 (FR021S) and I am also having the problem with the file
and for the moment it has been impossible for me to unzip the file
so I had to use the ASUS recovery for the moment
have you managed to finish the solution and if the problem continues?

Réponse 9 / 77

CharlyChantal

M-A-R-V-E-L-O-U-S!!! You solved the issues I couldn't fix and I was seriously starting to regret my new purchase... Also, for those trying to extract the file in DOS and receiving the following message: unable to open the nvldd file..., you must correctly input the backslash after the "cd" command like this: cd\ before pressing return or enter. Thus, the following command will start with C:\ (meaning at the root). Thank you for your help and I look forward to helping other poor internet users who, like me, had problems with their NVidia graphics card.

CéCéZ

Hello, the backslash gives me a: ^ little hat. erf

Réponse 10 / 77

Paulaner 5000

The solution works very well if executed under DOS command. Start the computer in safe mode with command prompt (by pressing F8 several times during startup) and then follow the instructions given at the top of the page using the commands CD, copy, rename...
Thank you for your solution...

gohan

For those who don't play overly demanding 3D games, here's a solution:
display properties/Settings/Advanced/Troubleshooting
then reduce the hardware acceleration to the level that will make the issue disappear. For my part, I set it to "none" to be at ease.
(Just in case, before that, I had disabled powermizer management in the NVIDIA control panel. But I don't know if that helps or not.)
With this manipulation, we remain on the GPU, not on the basic VGA drivers. So we fully exploit the capabilities of the screen.
I haven't tested any demanding games, but everything runs normally now.
I'm really glad to have ended this story and not having to buy a new GPU.
There are quite a few solutions that work for some and not for others. I hope this one helps. Otherwise, good luck in your quest and a big thanks to the manufacturers for working on the issue :-(

Réponse 11 / 77

Anonymous user

Hi,
I'm taking your tip for the FAQ ;) Thanks

Edit: Here it is ==> https://www.commentcamarche.net/faq/26313-plantage-de-nvlddmkm-sys-la-solution

Réponse 12 / 77

nicolas38

Hello

In step 2) of the third part, after hitting "enter", the system replies:
cannot open nvlddmkm.sys

where is the bug
thank you for the answers

have a nice day

Réponse 13 / 77

Yun

I have another solution to propose, one that I haven't found anywhere yet:

In my case, I found the flaw to this issue. According to my drivers, their version, I either had the nvldmkm.sys that we all know, or a major freeze.
I checked the temperatures on my GPU, and there, surprise: 110 °C without doing anything! (desktop display).

The fans were working (9800 GTX+); I took them apart, and the thermal paste had leaked on one side, I cleaned the chip, applied good paste, and now I'm back to 50 °C, then max 80 °C on 3D applications. And no more freezes or nvldmkm.sys!

So, underclocking, or the solution proposed above may not be the source of the problem, and you risk damaging your card irreparably.

And indeed, Nvidia saves on poor quality thermal paste. (my card had this problem after a year of use)

PS: To check the temperatures, you have Speedfan or HWMonitor.

CéCéZ

Like Yun, simple disassembly, purchase of thermal paste - (5 euros), change of the paste and the nvlddmkm issue resolved.

mam's

it works

Réponse 14 / 77

Freezame

Hello, your solution seems well detailed, but I have a problem when I type cd\; my line, which should start with C:\, starts with C:\> is that normal? If it is, my "real problem" is that the command prompt doesn't find a destination even when typing nvlddmkm.sy_ (space) nvlddmkm.sys as you mentioned before; I can't get it to work. Thank you in advance for your help.

Réponse 15 / 77

Rano8 Posted messages 2 Status Membre 2

Hello everyone,

I specifically registered on this forum to thank tony06153 for his solution.

I formatted my ASUS U36S PC via the recovery partition a few weeks ago, and since then I had been facing two issues:
- the screen would freeze randomly in terms of time and usage conditions. In this case, it was impossible to interact with the mouse and keyboard, and I was forced to perform a hard shutdown of the system.
- Blue Screen, also unpredictable based on usage conditions or the duration of use.

I first performed a second system restore, to no avail.

I installed the diagnostic tool WhoCrashed, which indicated a problem with the driver of my NVIDIA 610M graphics card:

crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: nvlddmkm.sys (nvlddmkm+0xE498C)
Bugcheck code: 0xA (0x10, 0x2, 0x1, 0xFFFFF8000309018F)
Error: IRQL_NOT_LESS_OR_EQUAL
file path: C:\Windows\system32\drivers\nvlddmkm.sys
product: NVIDIA Windows Kernel Mode Driver, Version 358.50
company: NVIDIA Corporation
description: NVIDIA Windows Kernel Mode Driver, Version 358.50
Bug check description: This indicates that Microsoft Windows or a kernel-mode driver accessed paged memory at DISPATCH_LEVEL or above.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
A third-party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: nvlddmkm.sys (NVIDIA Windows Kernel Mode Driver, Version 358.50 , NVIDIA Corporation).
Google query: NVIDIA Corporation IRQL_NOT_LESS_OR_EQUAL

I reverted to an earlier version of this driver, as suggested in other posts, which did not solve the problem.

I then applied the solution described here, and so far there have been no crashes reported (only a few hours of use, of course, but the PC was crashing at least once an hour in recent days).

Thanks for this solution, I was starting to lose hope for the recovery of my PC!

MWAMWA1966 Posted messages 281 Registration date Status Membre Last intervention 18

I can't even find the famous C:\NVIDIA, then!
It seems very simple for everyone, but for me, it's a bit like Chinese...
Can someone help me find the path?

mimicoppa Posted messages 86 Status Membre > MWAMWA1966 Posted messages 281 Registration date Status Membre Last intervention

First, are you sure you have an NVIDIA graphics card? To find out which card is in your computer, open the control panel, then the device manager, click on Graphics card, and see the name of the card that appears. If it’s not an NVIDIA, this article does not concern you. If it is, get back to us, and we will explain how to find the driver.

Colvertmetal334 > mimicoppa Posted messages 86 Status Membre

My folder C:\NVIDIA\DisplayDriver\ "Driver version number (for example: 186.81)"\International\Display\ is simply empty, and I don't know where to find the mentioned file.

mimicoppa Posted messages 86 Status Membre > Colvertmetal334

Same answer as for MWAMWA1966. But if it is indeed this card, check the manufacturer's website, and even better, check the website of your PC's manufacturer. The drivers from the card manufacturer may have been modified by the PC manufacturer. Personally, I found the right driver on the HP website; the others didn't work properly.

MWAMWA1966 Posted messages 281 Registration date Status Membre Last intervention 18 > mimicoppa Posted messages 86 Status Membre

Yes, I have an NVIDIA card. I have a folder named NVIDIACorporation but not where it's indicated in the procedure and, above all, it doesn't contain the famous file. I've searched the entire hard drive for the file in question, and it appears in several forms but not in the folders indicated in the procedure. In short, all of this is very unclear...

Réponse 16 / 77

Profile blocked

You won't believe me after all the nonsense the motherboard or graphics card professionals told me to change after this blue screen crash error:

The solution was to boycott the driver from the Nvidia site and auto-update

To go to toutlesdrivers.com and download the driver for your device, even if it's old: for my part, a driver dating back 2 years for my GTX TITAN graphics card, and the result is that no graphics card needs to be bought or PC thrown away. Thank you very much to the person who created this site, thank you, thank you, thank you

Best regards

testeur98 Posted messages 473 Registration date Status Membre Last intervention 74

Hello. I've said it before. The one that works for sure is to use an old driver. As a result, we'll see a drop in performance for games. Or we lower the frequency of the card, so it amounts to the same thing. For a gamer, this is not acceptable, especially if the game is demanding; we will notice the difference right away.

Réponse 17 / 77

Samsoulee Posted messages 1 Registration date Status Membre Last intervention 2

WARNING WARNING! Solution that worked for me!
I was experiencing this issue mainly during heavy gaming and/or streaming sessions. (but sometimes also with H264 video if I had Firefox open on YouTube

I have an MSI GeForce GTX 780 OC - 3 GB (N780 TF 3GD5/OC) (factory overclocked)
After trying all the solutions I found on the internet. (including renaming files, changing drivers with DDU, etc.

I solved it by downclocking the GPU of my graphics card by 100 MHz .
And there you go, problem solved, it's probably a GPU boost issue when playing H264 that combined with the factory overclock causes a problem: I probably need to redo the thermal paste on the card, which I will do next time.

testeur98 Posted messages 473 Registration date Status Membre Last intervention 74

Yes, by lowering the frequency, it also works for many people. Changing the thermal paste can solve the problem if we are already at the maximum temperature supported by the card, hence the Windows crashes.

Réponse 18 / 77

pierrot-ol

Yes, I did it as an administrator

And the same message keeps showing up.

Réponse 19 / 77

max5246

Same issue as pierrot-ol when decompressing, the command prompt shows
"unable to open output file: nvlddmkm.sys."
And I have followed the steps indicated by tony06153 and am indeed an administrator when I open the command prompt. Otherwise, for the .reg file, where should I place it after downloading it?

Réponse 20 / 77

lil tuga Posted messages 25 Status Membre 2

Sorry, but I tried your solution and it doesn't work. The error persists.

Nvlddmkm.sys (nvidia) finally the solution!!!

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