If Device Manager shows “Windows has stopped this device because it has reported problems (Code 43)” on your display adapter, you’re dealing with the graphics driver error code 43. It’s more serious-sounding than it usually is — in most cases Windows just fell back to a basic display driver, and your GPU didn’t fail, it just lost communication with the OS.
Quick Answer
Graphics driver error code 43 means Windows detected a problem reported by the GPU driver itself and shut the device down as a safety measure. A clean driver reinstall with DDU, a driver rollback, or a BIOS/Windows update fixes it for most people. Physical reseating and power cable checks matter too, since Code 43 can also be triggered by an unstable connection.
What Causes Code 43 on a Graphics Card?
Unlike Code 31, which happens when the driver fails to load, Code 43 means the driver loaded but then reported a problem, so Windows disabled the device. Common triggers include:
- A corrupted or incompatible driver, often after a Windows update
- A failed or interrupted driver installation
- Insufficient power to the card (missing or loose PCIe power connector)
- Software conflicts, such as overclocking utilities or Lucid Virtu MVP
- Loose GPU seating in the PCIe slot
- Overheating or an actual hardware fault, in rarer cases
Fix 1: Restart First
Shut the PC down completely, wait about a minute, then power it back on. This clears temporary communication glitches between Windows and the GPU and resolves a surprising number of Code 43 cases on its own.
Fix 2: Roll Back the Driver
If Code 43 started right after a driver update, rolling back is often faster than reinstalling — it’s another common Device Manager error that responds well to this approach too:
- Open Device Manager and expand Display adapters
- Right-click your GPU and select Properties
- Go to the Driver tab and click Roll Back Driver
- Restart your PC
If the option is greyed out, there’s no previous driver stored, so skip to the clean reinstall below.
Fix 3: Clean Reinstall with DDU
This is the fix most PC repair techs reach for first with Code 43:
- Boot into Safe Mode
- Run Display Driver Uninstaller (DDU), select your GPU brand, and choose Clean and restart
- After reboot, download the latest driver directly from NVIDIA, AMD, or Intel’s website — not through Device Manager
- Install it manually and restart again
Fix 4: Check the Power Connection
If you have a dedicated graphics card, this step is easy to overlook but fixes Code 43 more often than people expect:
- Confirm your PCIe power cable(s) are fully seated into the card, not just the PSU side
- Check that your power supply meets the card’s minimum wattage requirement
- If you recently upgraded your GPU, make sure you’re using the correct number of power connectors for that model
Fix 5: Reseat the GPU
Shut down the PC, unplug it, and remove the graphics card from its PCIe slot. Check for dust or debris, then reinsert it firmly until it clicks into place. A loose card is a common, easily missed cause of Code 43.
Fix 6: Update Windows and BIOS
Install the latest Windows updates fully under Settings > Windows Update, then check your motherboard manufacturer’s website for a newer BIOS version. Outdated BIOS and PCIe power management settings have both been linked to Code 43 on certain motherboard/GPU combinations.
Fix 7: Remove Conflicting Software
Utilities like Lucid Virtu MVP, aggressive overclocking tools, or old GPU control panel leftovers can trigger Code 43 after a Windows update. Uninstall any of these through Settings > Apps, restart, and check Device Manager again.
When It’s Actually Hardware
If you’ve tried a clean reinstall, confirmed power connections, and reseated the card with no change, it’s worth testing the GPU in another PC if possible, or having it checked at a repair shop. Overheating damage and a genuinely failing card are the least common cause of Code 43, but they do happen.
Frequently Asked Questions
Is Code 43 the same as Code 31?
No. Code 31 means the driver failed to load in the first place. Code 43 means the driver loaded, then reported a problem, so Windows shut the device down. The fixes overlap, but Code 43 points more toward driver conflicts, power issues, or hardware faults.
Can Code 43 fix itself after a Windows update?
Sometimes. If the error started right after a Windows update, a follow-up patch from Microsoft or a new driver from your GPU vendor can resolve it without you doing anything, though it’s not something to count on.
Does Code 43 mean my graphics card is dead?
Not usually. Most Code 43 cases are driver or power-related and get fixed with a clean reinstall or a reseated card. Hardware failure is possible but is the least common explanation.
Why does rolling back the driver sometimes work better than updating it?
If Code 43 appeared right after a driver update, the new driver itself may be the problem. Rolling back restores the previous, known-working version instead of trying to repair a driver that’s already causing the issue.
