Device Manager Error Code 43 on Windows 11 usually means that the operating system has stopped a device because it reported problems. This error often appears with USB devices, graphics cards, or other hardware components. It can be frustrating but is generally fixable with some straightforward steps.
Understanding the cause of this error is crucial to resolving it effectively. Sometimes, it’s a simple driver issue or hardware connection problem. Other times, deeper system tweaks might be necessary.
This guide will walk you through easy-to-follow solutions to fix Error Code 43 on Windows 11. No technical jargon — just clear, step-by-step instructions.
Let’s get started and get your device working again quickly.
Quick Note: Before You Begin
- Check your device connection: Make sure the device is properly plugged in or seated.
- Restart your PC: Sometimes a simple reboot can clear temporary glitches.
- Note your device type: Knowing if it’s a USB device, graphics card, or something else helps tailor troubleshooting.
- Backup important data: It’s always good to have backups before making system changes.
Step 1: Restart Your Computer
This might sound too simple, but restarting Windows 11 can clear temporary system errors that cause Error Code 43. It refreshes the connection between your hardware and your system.
How to Restart:
- Click the Start button on the taskbar.
- Select the Power icon.
- Choose Restart.
After your PC restarts, check Device Manager again to see if the error persists.
Step 2: Disconnect and Reconnect the Device
If you’re dealing with an external device like a USB drive or printer, unplug it and plug it back in. Sometimes, a loose connection causes Error Code 43.
Important: Use a different USB port if available. Faulty ports can also cause this error.
Step 3: Run the Hardware and Devices Troubleshooter
Windows 11 includes built-in troubleshooters that can automatically detect and fix hardware problems.
How to Run the Troubleshooter:
- Open Settings by pressing
Win + I. - Go to System > Troubleshoot > Other troubleshooters.
- Find Hardware and Devices and click Run.
- Follow the on-screen instructions to complete the troubleshooting process.
This tool checks for common hardware issues and attempts fixes automatically.
Step 4: Update the Device Driver
Outdated or corrupted drivers are one of the main causes of Error Code 43. Updating your device driver can solve the problem.
Steps to Update Drivers:
- Right-click the Start button and select Device Manager.
- Locate the problematic device (with a yellow warning icon).
- Right-click the device and choose Update driver.
- Select Search automatically for drivers.
- Wait while Windows searches and installs the latest driver.
If Windows doesn’t find a new driver, visit the device manufacturer’s website to download and install the driver manually.
Step 5: Uninstall and Reinstall the Device Driver
If updating doesn’t fix the error, uninstalling and then reinstalling the driver can help reset the device settings.
How to Uninstall and Reinstall:
- Open Device Manager.
- Right-click the device showing Error Code 43 and select Uninstall device.
- Confirm the uninstallation.
- After uninstalling, restart your PC. Windows will attempt to reinstall the driver automatically.
This method removes any corrupt driver files and replaces them fresh.
Step 6: Check for Windows Updates
Keeping Windows 11 up to date ensures system components and drivers work smoothly. Microsoft often releases patches that fix device compatibility issues.
To Check for Updates:
- Open Settings (
Win + I). - Go to Windows Update.
- Click Check for updates.
- Install any available updates and restart your PC if prompted.
Step 7: Disable and Re-enable the Device
Sometimes temporarily disabling the device and enabling it again resets its state and resolves the error.
How to Do This:
- In Device Manager, right-click the device and select Disable device.
- Wait a few seconds, then right-click again and choose Enable device.
- Check if the error code is gone.
Step 8: Check for Hardware Issues
If software fixes don’t work, the hardware itself might be faulty. Try connecting the device to another computer to see if it works. If it doesn’t, the device could be damaged.
For internal components like graphics cards, ensure they are properly seated in their slots. You can also try reseating or cleaning the contacts carefully.
Alternative Method: Use System Restore
If Error Code 43 started appearing recently, using a System Restore point can undo recent changes that might have caused the problem.
How to Use System Restore:
- Search for Create a restore point in the Start menu and open it.
- Click the System Restore button.
- Follow the wizard to choose a restore point dated before the error started.
- Complete the restore process and restart your PC.
This will revert your system settings without affecting your personal files.
Frequently Asked Questions (FAQs)
What exactly is Device Manager Error Code 43?
Error Code 43 means Windows has stopped a device because it reported problems. It usually indicates a hardware or driver issue.
Can I ignore Error Code 43?
Ignoring it is not recommended because the device may not work properly or could cause system instability.
Will updating Windows fix this error?
Sometimes yes. Windows updates often include driver updates and bug fixes that can resolve hardware errors like Code 43.
Is it safe to uninstall and reinstall device drivers?
Yes, it is a standard troubleshooting step and generally safe. Windows will reinstall the driver upon reboot.
What if my device still doesn’t work after all these steps?
The device might have a hardware fault. Testing on another computer or consulting a technician is advised.
When Nothing Works
If you have tried all the above steps and the error persists, consider these final options:
- Contact the device manufacturer’s support: They may have specific fixes or firmware updates.
- Visit Microsoft Support: https://support.microsoft.com for official help and diagnostics.
- Consider hardware replacement: If the device is faulty, replacing it might be the only solution.
Conclusion
Device Manager Error Code 43 on Windows 11 can be caused by driver issues, hardware problems, or system glitches. Starting with simple steps like restarting your PC and reconnecting devices can often solve the problem. If not, updating or reinstalling drivers and running troubleshooters usually help.
Always check for Windows updates and consider hardware health if software fixes fail. By following this guide, you can resolve most cases of Error Code 43 and get your device back to working condition.