How to fix error code 43 on Windows step by step

El Error code 43 on Windows is a common problem affecting devices connected via USB, video cards and other hardware componentsThis error is usually caused by a communication failure between the operating system and the device in question. Fortunately, there are multiple solutions to correct it and restore the correct operation of the device.

In this article, we will explore in depth what error 43 means, its possible causes, and most importantly, how to fix it using different methods. From simple reboots to driver updates y advanced settings, here you will find all the information you need to get rid of this problem once and for all. Let's get to it.

What is error code 43 in Windows?

Error code 43 is a notification from the Device administrator Windows error that indicates that a device has been stopped because the system has detected a problem. It may appear with a message like:

«Windows has stopped this device because it has reported problems (Code 43).»

This error occurs in various versions of Windows, from Windows 7 to Windows 11, and affects devices such as USB drives, graphics cards, printers, webcams, and other peripherals.

Other errors related to code 43 in Windows include error code 10, which indicates that a device cannot start correctly, the error code 45, which appears when Windows does not detect a connected device, and the error code 31, which is usually linked to problems with network drivers. The error code 19 affects storage devices such as USB drives or hard drives, while the error code 39 may prevent hardware drivers from working. 

Main causes of error 43 in Windows

• Driver problems: A corrupt, outdated, or incompatible driver can cause this error.
• Hardware failures: A damaged or faulty device can cause conflicts with the system.
• Software conflicts: Some applications may interfere with the proper functioning of the hardware.
• Power management issues: Windows may disable USB devices to save power, which sometimes causes errors.

Steps to fix error code 43

1. Restart the computer

Sometimes a simple reboot You can fix this problem by completely shutting down your computer, waiting a few minutes, and then turning it back on. This allows the operating system to reload all devices properly.

2. Disconnect and reconnect the device

If error 43 is related to an external device, try disconnecting and reconnecting it. For USB devices, try another port to rule out connectivity problems.

3. Test the device on another computer

If the device still does not work, connect it to another computerIf the problem persists, the device may be damaged.

4. Run the hardware troubleshooter

Windows offers a tool that can detect and fix problems with connected devices. To run it:

• Press Windows + R and writes msdt.exe -id DeviceDiagnostic.
• Press Enter and follow the wizard instructions.

5. Update drivers

Updating drivers may fix the error if the problem is related to outdated software. To do it:

1. Open the Device administrator.
2. Locate the problematic device (it will appear with a warning icon).
3. Right click and select Update Driver.
4. Choose Automatically search for drivers.

6. Reinstall the drivers

If updating drivers doesn't work, try uninstalling and reinstalling them manually:

1. Open the Device administrator.
2. Right click on the device and select uninstall.
3. Restart your computer and Windows will attempt to reinstall the drivers automatically.

7. Check power settings

In some cases, Windows may disable USB devices for save energy, which generates error 43. To avoid this:

• Open the Device administrator and find the device with the error.
• Right click and select Properties.
• In the Power managementuncheck the option Allow the computer to turn off this device to save power.

8. System Restore

If the error started after installing an update or a new program, restoring the system to an earlier point may be the solution:

1. Search for “System Restore” in the Start menu.
2. Select a restore point from before the problem.
3. Follow the wizard's instructions to complete the process.

How to prevent error 43 in the future

• Keep drivers up to date: Make sure you always install the latest versions of drivers.
• Taking care of your hardware: Avoid bumping your devices and make sure the USB ports are in good condition.
• Avoid installing suspicious software: Some applications may cause conflicts with the system.
• Perform periodic maintenance: Run virus scans and check device status regularly.

Error code 43 in Windows can be annoying, but in most cases it can be fixed with simple steps like Restart the system, update drivers o adjust settings in Device Manager. By following these recommendations, it is possible to recover the functionality of the affected devices and prevent the problem from occurring again.