If you’ve encountered System Error Code ERROR_39 on your Windows computer, you’re not alone. This error usually indicates a problem with device drivers, specifically when Windows cannot load the required driver for a device. Don’t worry — it’s a common issue and absolutely fixable. In this detailed, human-friendly guide, we’ll walk you through the step-by-step process to troubleshoot and resolve ERROR_39 quickly and efficiently.
What is System Error Code ERROR_39?
ERROR_39 is a Windows Device Manager error code that appears when your system cannot load a device driver. The full message typically reads:
“Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)”
This error usually occurs because of corrupted or missing drivers, incorrect registry entries, or driver conflicts.
Why Fix ERROR_39?
Not fixing this issue can cause your device (like a CD/DVD drive, USB device, or network adapter) to stop functioning properly, resulting in reduced system performance or failure of certain hardware components.
Step-by-Step Guide to Fix System Error Code ERROR_39
Step 1: Restart Your Computer
Before diving into troubleshooting, perform a simple restart. Often, this can clear temporary glitches that cause driver errors.
- Click Start > Power > Restart.
- Once restarted, check if the device error persists.
Step 2: Check Device Manager for Error 39
Locate the device causing the ERROR_39 to narrow down your troubleshooting.
- Press Windows + X and select Device Manager.
- Look for a device with a yellow warning icon.
- Right-click the device and select Properties.
- Go to the General tab and confirm the error code message.
Step 3: Update the Device Driver
Outdated or incompatible drivers are a common cause of ERROR_39.
- In Device Manager, right-click the problematic device.
- Select Update driver.
- Choose Search automatically for updated driver software.
- Follow on-screen prompts to install if an update is found.
- Restart your PC and check if error code disappears.
If automatic update fails, visit the device manufacturer’s website to manually download and install the latest driver.
Step 4: Uninstall and Reinstall the Device Driver
Sometimes, clean reinstalling the driver can fix corruption issues.
- In Device Manager, right-click the problem device.
- Click Uninstall device.
- If prompted, check “Delete the driver software for this device” and confirm.
- Restart your computer.
- Windows should detect the device and reinstall the driver automatically.
- Verify if the ERROR_39 is resolved.
Step 5: Run Windows Troubleshooter
Windows includes a built-in troubleshooter that can find and fix device issues.
- Go to Settings > Update & Security > Troubleshoot.
- Click Additional troubleshooters.
- Select the relevant hardware troubleshooter (e.g., Hardware and Devices).
- Run the troubleshooter and follow instructions.
Step 6: Check for Corrupted Registry Entries
WARNING: Editing the Windows Registry can harm your system if done incorrectly. It’s highly recommended to back up your registry before proceeding.
The Error 39 may be caused by corrupted registry entries related to the driver.
- Press Windows + R, type regedit, and press Enter.
- Navigate to:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318} - In the right pane, look for values named UpperFilters and LowerFilters.
- If found, right-click each and select Delete.
- Close Registry Editor and restart your computer.
This often resolves the driver loading issue causing ERROR_39.
Step 7: Perform a System Restore
If ERROR_39 appeared recently and you suspect recent changes caused it, a System Restore may help.
- Search Create a restore point in Start and open it.
- Click System Restore.
- Choose a restore point dated before the problem started.
- Follow the prompts to restore your system.
- After the restore, check if the device issue is fixed.
Step 8: Update Windows
Keeping your system up to date ensures all drivers and system files work smoothly together.
- Go to Settings > Update & Security > Windows Update.
- Click Check for updates.
- Install all available updates.
- Reboot and check if ERROR_39 persists.
Tips to Prevent Future Driver Errors
- Regularly update your hardware drivers.
- Avoid installing unofficial or pirated driver software.
- Create system restore points before major updates or driver changes.
- Use trusted antivirus software to prevent corruption caused by malware.
Final Thoughts
System Error Code ERROR_39 can be frustrating, but with patience and this step-by-step guide, you can overcome it. Starting from simple restarts to more advanced registry fixes, each step is designed to help you return your device to working order while understanding what’s happening behind the scenes.
If these steps don’t solve the problem, your hardware might have a physical issue, and contacting a professional technician or the device manufacturer’s support is recommended.
Got questions or want to share your success story fixing ERROR_39? Drop a comment below – we love hearing from you!
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