How to resolve Code 43 errors in Device Manager in Windows?

If you are a PC gamer, you may encounter "Windows has stopped on this device" (Code 43) error. You don't have to be a big gaming platform to get the bug, either. You may have seen it on your laptop.

This code prevents you from using hardware devices such as graphics cards, internal drives, and external drives. Corrupted hardware devices, corrupted drivers, or other software can cause errors.

We’ll show you how to fix code 43 on Windows below.

Confirm Code 43 Error on Windows

If you get the generic Windows has stopped this device because it reported a problem, you need to verify that it is Code 43. Note that it usually happens with the graphics card or GPU, but it can also be an issue with an external USB device.

You can confirm the Code 43 error on Windows:

1. Press the Windows key and search for Device Manager and click on the top result.
2. Device Manager may place an exclamation point next to the problematic hardware - double-click it to open its properties.
3. Otherwise, right-click on your graphics card (or other hardware), right-click and open Properties.
4. When the Properties window opens, look for code 43 in the Device Status section under the General " tab.

Restart Windows

Please note that these solutions apply to Windows 10 and 11 and the steps are almost the same.

One of the first things to try is to restart your PC. Restarting clears history, cache, and other temporary files that may interfere with GPU operation.

To restart Windows 10 or 11:

1. Make sure to save your saved work and close all programs.
2. Right-click the "Start" button and select "Shut down or log off" > "Restart".
3. If you have a desktop PC and have access to the GPU, shut down your PC, open the case, reinstall the graphics card (making sure it's connected properly), and then turn your PC back on.

Safely Eject All External Devices

If the problem may be coming from external devices such as drives or other devices, safely disconnect them and see if the error persists. All versions of Windows generally don't care if you unplug a USB device when needed, but doing it safely will ensure that the data is preserved.

To safely eject a USB device, do the following:

1. Right-click the USB symbol on the taskbar in the upper right corner.
2. Click to pop up my ".." option and do this for all devices.
3. Using a second computer (if you have one), plug in the device and see if it works. If not, the device is faulty. Or, if it works, the problem is most likely the USB port.

Are they working on a secondary PC? Insert them one by one to determine which one is faulty. It's possible they're not wrong; instead, you might have plugged them into the USB port incorrectly.

Update Device Drivers

Another important thing to do is to update the driver for your device. For example, the GPU may have bugs that a driver update will fix.

1. Click Start, search Device Manager, and select the top result.
2. Expand the branch containing the device you need to address.
3. Right-click the device and select Update Driver from the menu.
4. On the following screen, select the Automatically search for drivers option.
5. If a new driver is available for the device, Windows will automatically install it. If it says it found the best driver, click Search for updated drivers on Windows Update and follow the on-screen instructions.
It's also worth noting that if Windows doesn't find a driver for your device, you can always manually install an updated driver.

Disabling and re-enabling devices

Another step you can try is to disable the device that is giving the error and re-enable it. You can do this directly from Device Manager.

To re-enable a device on Windows:

Click

Start
1. , search for Device Manager, Then open the top result. Right-click the device in question (it may have a red exclamation mark icon) and select
Disable Device from the menu.
2. Please note that if it is your GPU, your monitor will flicker a few times and the screen may appear large, just like in safe mode. Click the
Yes button when the verification message appears.
3. After a few seconds, right-click the device and select
Enable Device
4. .
You can fix Code 43 on Windows by re-enabling the problematic device. Make sure to only use this step if updating the driver doesn't work.

Check for Windows Updates

Windows will automatically check and install system drivers in the background. However, it doesn't hurt to check manually. So, for example, a driver from Microsoft might fix a hardware problem waiting for you to install it.

To check for the latest Windows updates:

Press the

Windows key
1. and open Settings > Windows renew. Click the Check for Updates button to install any updates it finds and reboot if necessary.
2. 
Fix Errors, Including Code 43 on Windows

If you use the steps above, you should get your system to fix if you see Code 43 errors on Windows Starts and runs normally. If all else fails, you can always try System Restore. Other last-ditch efforts would include restoring from a system image backup, assuming you have created a full system image.

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