What is Nvlddmkm.sys Code 43?
If you are facing the error code 43, then it means that your Nvidia graphics card is not being recognized by the computer. This could be due to a few different reasons.
It may be a hardware issue, software issue, or both. Whatever the case, there are a few solutions you can try to fix this problem.
Hardware
Error 43 is a generic error that usually indicates that Windows can’t find or properly identify the hardware you have attached to your system. This is particularly true of the graphics card or GPU.
Often, the error occurs when drivers are missing, outdated, corrupted, or otherwise not working properly. It also happens when the hardware itself is faulty and needs to be replaced.
Another reason this error can appear is if you have recently made changes to the Device Manager. If you have made any adjustments, try performing a system restore to undo those.
In most cases, a system restore will resolve this error by bringing your PC back to the way it was before the adjustments were made.
One solution that many users have used to fix this problem is updating the BIOS (Basic Input/Output System) firmware. This firmware is responsible for the initialization of your hardware when your computer boots up.
Software
The error code 43 in NVIDIA graphics card software can occur due to various reasons. It may be related to faulty hardware, outdated drivers, or corrupt system files.
Hence, the first step in overcoming this problem is to fix the faulty hardware. It could be as simple as updating your drivers, installing the latest version of Windows, or using a device driver uninstaller (DDU).
Next, check if you have an authentic NVIDIA video card. If not, it’s highly recommended to return it back for a new one.
Another possible cause of this error is a high temperature of your GPU. This can result in unexpected crashes. Therefore, it’s better to avoid overheating your GPU and use the PC in a controlled manner.
BIOS
If you are using a PC with Windows operating system, there is an in-built hardware troubleshooting system that you can use to fix any hardware issues. It is called the Basic Input/Output System (BIOS) and plays a major role in hardware initialization and smooth booting process of the PC.
BIOS updates are often required for resolving some PC issues and it can also help to fix the graphics card error code 43. You can update the BIOS by visiting the official website of your PC manufacturer and following all their instructions.
If updating your BIOS did not solve the problem, then it could be a driver issue. You can try rolling back the last graphics driver update to see if that fixes the error.
Drivers
Graphics cards, USB devices, audio drivers and other hardware devices are often affected by nvlddmkm.sys code 43 in Windows. These errors are usually caused by outdated, missing or incompatible drivers.
The best way to avoid these errors is to update your driver regularly. Professional driver assistant software can help you download and install the latest driver versions for your system.
However, it is important to note that most inbuilt Windows drivers may not be up-to-date or compatible with modern hardware and software. In this case, it’s a good idea to use third-party software to update your drivers automatically.
Disabling your graphics card and then re-enabling it may also fix the NVIDIA code 43 error. Simply press Win + X and click Device Manager to do this.