Windows Error Code 43 is one of the most frustrating hardware errors you can encounter. It appears in Device Manager with the message “Windows has stopped this device because it has reported problems” along with a yellow warning triangle. This error typically affects graphics cards, USB devices, and other critical hardware components.
- How to Check for Error Code 43 in Device Manager
- Method 1: Reinstall the Device Driver
- Method 2: Update Your Drivers Manually
- Method 3: Use Display Driver Uninstaller (DDU) for a Clean Driver Removal
- Method 4: Check for Hardware Failure
- Frequently Asked Questions
- What causes Error Code 43 in Windows?
- Can Error Code 43 be fixed without reinstalling Windows?
- Does Error Code 43 mean my graphics card is dead?
- Is Error Code 43 the same as a Code 43 on USB devices?
- Final Thoughts
If you are seeing Error Code 43 on your Windows PC, do not panic. In most cases, the issue is caused by corrupted or outdated drivers rather than a dead component. Below are four proven methods to fix Error Code 43, starting with the simplest solution.
How to Check for Error Code 43 in Device Manager
Before you start troubleshooting, confirm that your system actually has Error Code 43. Open the Windows Search bar and type “Device Manager” to launch it.
- Expand the Display Adapters section to find your graphics card.
- Look for a yellow triangle with an exclamation mark over the device icon.
- Right-click the device and select Properties.
- Check the Device Status section. If you see “Windows has stopped this device because it has reported problems. (Code 43)”, then you have confirmed the error.
If you are troubleshooting a non-graphics device like a USB controller, find it under the relevant section in Device Manager and check its properties the same way.
Method 1: Reinstall the Device Driver
The first and simplest fix is to completely uninstall and reinstall the device through Device Manager. Windows will automatically detect the hardware and install fresh drivers.
- Right-click the device showing Error Code 43 and select Uninstall Device.
- Confirm the uninstallation when prompted. Do NOT check “Delete the driver software for this device” unless you have a driver package ready.
- Restart your PC if Windows asks you to. Otherwise, go to the Action menu and select Scan for hardware changes.
Windows will detect the hardware and reinstall the default drivers. Check Device Manager again to see if the yellow triangle has disappeared. This resolves Error Code 43 for many users because it clears any corrupted driver state.
Method 2: Update Your Drivers Manually
If a simple reinstall did not work, the problem is likely an incompatible or outdated driver. Windows Update does not always deliver the latest GPU drivers, so manual updates are often necessary.
- Right-click the device in Device Manager and select Properties.
- Go to the Driver tab and click Update Driver.
- Select Search automatically for updated driver software. Windows will search online for the latest driver package.
- If Windows says you already have the best driver installed, proceed to Method 3 for a deeper clean.
For NVIDIA users, we recommend using GeForce Experience to download and install the latest drivers instead of relying on Windows Update. AMD users should use the Adrenalin software for the same purpose.
If your graphics card still is not showing up in Device Manager at all, check our guide on fixing a graphics card that is not detected for additional troubleshooting steps.
Method 3: Use Display Driver Uninstaller (DDU) for a Clean Driver Removal
Sometimes Windows cannot completely remove old or corrupted driver files during a standard uninstall. Residual driver files can cause Error Code 43 to persist even after a fresh driver installation. This is where Display Driver Uninstaller (DDU) comes in.
Display Driver Uninstaller is a free tool that completely removes all traces of GPU drivers from your system. It wipes out leftover registry entries, driver folders, and installed packages that standard uninstalls leave behind.
- Download DDU from the official Guru3D website.
- Reboot Windows into Safe Mode. This prevents Windows from loading GPU drivers during the cleanup process.
- Run DDU and select your GPU manufacturer (NVIDIA, AMD, or Intel).
- Click Clean and Restart. DDU will remove every driver file and reboot your PC.
Once your PC restarts, install the latest drivers from your GPU manufacturer’s website. This method resolves even stubborn Error Code 43 cases that refuse to go away with standard methods.
High GPU temperatures can also cause instability and driver crashes. If you are troubleshooting persistent errors, check our guide on 9 ways to lower your GPU temperature to keep your hardware running smoothly.
Method 4: Check for Hardware Failure
If you have tried all three software fixes above and Error Code 43 still appears, the hardware itself may be failing. This is rare, but it happens. Graphics cards and other components can physically degrade over time due to heat, power surges, or manufacturing defects.
Try testing the device in another PC if possible. If the error follows the device to a different system, the hardware is likely faulty. For graphics cards, try using a different PCIe slot on your motherboard to rule out a bad slot connection.
If you suspect your Windows installation is causing persistent driver issues, a clean install may fix deep-seated system corruption. Read our step-by-step guide on how to do a clean installation of Windows 10 for a fresh start.
As a last resort, contact the device manufacturer for warranty support. Most hardware carries at least a one-year warranty, and many GPU manufacturers offer three-year warranties. You may be eligible for a replacement or repair.
Frequently Asked Questions
What causes Error Code 43 in Windows?
Error Code 43 is caused by a device reporting a problem to Windows. The most common triggers are corrupted or outdated drivers, incompatible driver versions, hardware conflicts, or failing hardware components. Driver issues account for roughly 90% of Error Code 43 cases.
Can Error Code 43 be fixed without reinstalling Windows?
Yes. In the vast majority of cases, Error Code 43 can be resolved by reinstalling the device driver, updating to the latest driver version, or using DDU for a clean driver removal. A full Windows reinstall is rarely necessary and should be a last resort.
Does Error Code 43 mean my graphics card is dead?
Not necessarily. Error Code 43 is more often a driver communication issue than a sign of permanent hardware failure. Only after exhausting all driver-based troubleshooting methods should you suspect hardware failure. Try testing the GPU in another PC to confirm.
Is Error Code 43 the same as a Code 43 on USB devices?
Yes. Error Code 43 can appear on any device in Device Manager, including USB controllers, network adapters, and sound cards. The same troubleshooting methods apply regardless of which device is showing the error.
Final Thoughts
Error Code 43 is a Windows error code that signals a device driver problem, not a dead component. Start with Method 1 (reinstall the driver) and work through the list. Most users resolve the issue by Method 2 or 3.
Keeping your drivers up to date and maintaining proper cooling for your components will help prevent Error Code 43 from appearing in the future. For more PC optimization tips, check out our Windows 10 optimization guide for better gaming performance.
