NVIDIA Code 43 (Windows has stopped this device because it has reported problems)

The code 43 generally means that the required device is not identifiable. The computer attempts to successfully access and sync with the device, but it does not succeed. This usually happens when a new driver is installed, a new update is installed or Lucid Virtu MVP is running.

We will start by checking if the graphics card is correctly inserted in the slot. Later, we will move on to software solutions, including uninstalling the device and installing the default drivers. In the last stage, we will update your computer's BIOS and also modify Windows Update.

Solution 1: Checking the correct insertion of the graphics card

Before proceeding to diagnose the problem using alternative solutions, first you need to check if the graphics card is seated correctly in its slot. Press firmly and make sure all pins are firmly inserted. If you have a laptop, just turn off and on the power as explained below.

1. Press Windows + R, type »devmgmt.msc» in the dialog box and press Enter.

2. Once in device manager, expand the category of »Display adapters«, right-click on your device and click »Disable«.

1. Now turn off your computer. Take out the battery (in the case of a laptop) or pull out the main power cord (in the case of a PC).

If you have a PC, open the lid and make sure the graphics adapter is fully inserted into the pins.

1. After carrying out the previous steps we restart the computer, we activate the hardware in the same way that we have deactivated it and check if it works correctly.

Solution 2: uninstall Lucid VIRTU MVP software

After the last Windows update, NVIDIA issued an official statement that Lucid VIRTU MVP software is not compatible with NVIDIA devices and is causing discrepancies leading to various issues, including the one we are experiencing. This software mainly allows to switch between motherboard graphics and discrete graphics card. It is a very useful tool, but it doesn't seem to work with NVIDIA software.

1. Press Windows + R, type »appwiz.cpl» and press Enter.

2. You will see all the applications installed on your computer in front of you. Search among them the software “Lucid MVP”, right click and select “Uninstall”.

1. After uninstalling the app, restart your computer and check if the problem is solved. If the hardware keeps giving the error code 43, try disabling it then enabling it again.

Note: What's more, make sure to completely uninstall the software “UPSilon 2000” or any other app you installed before getting this error.

Solution 3: install the latest windows update

Windows Releases Important Updates That Point To Bug Fixes In The Operating System. One of the errors in our case; NVIDIA hardware displaying the error message. If it is lagging and you are not installing the Windows update, we strongly recommend that you do. Windows 10 It is the latest Windows operating system and new operating systems take a long time to perfect in all aspects.

1. Press the Windows button + S to launch the search bar from your start menu. In the dialog, enter »Windows Update«. Click on the first search result that appears.

1. Once in the update settings, click the button that says “Search for updates”. Now Windows will automatically search for available updates and install them. It may even ask you to reboot the system.

1. After upgrade, restart your computer and see if your problem has been resolved.

Solution 4: install the default graphics drivers

Faulty graphics drivers are also known to be the cause of this problem. Drivers are the main driving force of any hardware connected to the computer. If they are damaged or outdated, can make the error appear over and over again.

We will start the computer in safe mode and remove the currently installed drivers for the display card. When restarting, the default display drivers will be installed automatically upon detection of display hardware.

1. Follow the instructions in our article on how to start your computer in safe mode.

2. Once started in safe mode, right-click the Windows key and select Device Manager from the list of available options.

Another way to start Device Manager is by pressing Windows + R to start the application Run and typing “devmgmt.msc”.

1. Once in device manager, expand Display Adapters section and right click on display hardware. Select the option to Uninstall the device. Windows will open a dialog box to confirm your actions, press OK and continue.

Now restart your device. Now check if the error has been resolved.

Solution 5: To update / Revolutionize controllers

If all the above solutions don't work, we can try to update the graphics driver. Your graphics driver may not be configured correctly or not up to date. We need to completely remove all driver files before installing the new driver, Thus, we must use the Uninstaller utility of the display driver. You can download the utility from the internet easily.

1. After installing Display Driver Uninstaller (GOD), start your computer in safe mode. You can learn how to start your computer in safe mode by reading our article about it..

2. After starting the computer in safe mode, launch the application you just installed. Choose Safe Mode option.

1. After starting the application, select the first option »Clean and restart«. The application will automatically uninstall the installed drivers and restart the computer accordingly.

1. Start the computer in normal mode and start the application. Launch the GeForce application, open the tab »Drivers» and click the button »Download driver«. Enter your specification on the right side of the screen and click »Start Search» to have the application search for the optimal drivers for your computer..

1. After updating the driver, restart your computer and check if the problem is solved.

If installing the latest drivers doesn't work (as in many cases), You need to follow the steps below to make sure the drivers are not automatically updated in Windows Update and install a driver from an older version.

1. Press Windows + S to launch the search menu from the launch bar. Type »system» in the dialog box and select the first item that appears in the result.

1. Once in the system, click on »Advanced system settings» on the left side of the screen.

1. Go to the Hardware tab and click on »Device installation settings«.

1. Select the option »No (your device may not work as expected)«. Press Save changes and exit. This will disable Windows update so that it does not automatically update graphics drivers.

1. Now press Windows + X to launch the quick start menu and select »Device Manager» from the list of available options.

2. Once in Device Manager, expand the category »Display adapters«. Right click on the hardware and select »Update Driver Software …«.

1. Select the second option »Browse my computer for driver software«. Now navigate to the place where you downloaded the driver package and install it.

1. After installation, restart your computer completely and check if the problem in question has been resolved.

Solution 6: update your BIOS

BIOS stands for Basic input / output System and is a firmware that is used to perform hardware initialization during the computer boot process. The system BIOS is pre-installed on the computer by the manufacturer and is the first software to run when the computer starts.. Rather, it is a key that starts all other processes on the computer.

The BIOS is also responsible for testing the hardware components of your PC and making sure they are working properly without errors.. Most BIOSes are specifically designed to work with a specific model or motherboard.. Traditionally, BIOS was written to ROM and hardware had to be replaced when BIOS was updated. In modern computer systems, BIOS is stored in flash memory so it can be rewritten without the threat of hardware replacement.

There were numerous reports that updating the computer's BIOS solved the problem instantly, but we kept it as a last resort as it is very technical. Take a full backup of your data before resorting to this solution. What's more, consider reinstalling your BIOS even if it is updated to the latest version. We have several different articles that point to how to update your machine's BIOS (search this site for BIOS update).

Solution 7: check the authenticity of the graphics card

In some cases, the graphics card you are using may be fake or faulty. Therefore, to verify its authenticity, note the exact make and model of your graphics card and check its normal speeds online. Now, download GPU Z and run the executable to install it. After installation, check if your card is original or not. If it is not genuine and only a custom BIOS has been updated, return it to the place where you bought it and get a new one.

Note: It is also recommended that you try cleaning the GPU and reinstalling its thermal compound, as, reportedly, has helped some users to fix this problem.