When using a USB drive, if you receive an error that says— Code 39, Windows cannot load the device driver, this post will help you resolve the problem. The error can show for any USB device, including a standard USB drive, HDD/SSD, or even a webcam. The error is usually seen in the General tab (Properties window) of the device in the Device Manager.
Code 39, Windows cannot load the device driver
This Device Driver error occurs when there is a driver issue or when the device is misconfigured on the software level during the setup. Follow these suggestions to fix the problem.
- Reinstall the Device
- Update the USB device drive
- System Restore
- Disable Memory integrity
You will need admin permission to execute the suggestion. Also, ensure to create a system restore if something goes wrong and you cannot access the PC.
1. Reinstall the Device
When you connect a device to Windows PC, it automatically detects and installs the most compatible driver. It ensures when the device is reconnected again, it is ready to use. To reinstall, you will need to remove the device from the system and make Windows detect it again.
- Open Power Menu (Win + X) and then press M to open Device Manager
- Locate the USB device, and right-click on it.
- Click on the Uninstall option from the context menu
- Restart the PC and then replug the hardware
- Windows will detect the device again and install the required driver.
Check if the issue has been resolved.
2. Update the USB device driver
Even if it’s a standard USB driver, a driver is associated with it. If you have a storage drive, a camera, or anything with a USB interface, it would be best to update the drivers. The right path to updating the drivers would be to download them from the OEM website instead of Windows Update. The former method ensures you get the latest version and the compatible one. Most OEMs offer software that can help you keep the device updated.
3. Replace the Hardware
If none of these work, it would be best to try the same device on another computer and check if it works. If not, then it’s a hardware issue. If your device is under warranty, you can contact customer support and get a replacement. If it’s not, customer support may help you get it fixed for a price.
4. Disable Memory integrity
Open Windows Security and navigate to Device Security > Core isolation and turn off Memory Integrity. Now try accessing the USB device, and if it loads, then the problem is with the driver, and you need to find a driver and install it.
Memory integrity prevents attacks from inserting malicious code into the high-security processes. If Windows Security finds the driver with an incorrect signature, then it’s a problem. It doesn’t indicate that the driver is malicious but it could be that the driver is outdated, and needs an update.
How to fix Error 39 if I can’t find the device?
If you are unable to find which device is giving this error, then you need to uninstall every device under the Universal Serial Bus controllers hardware category in Device Manager. Then use the Scan for hardware changes to redetect the device so Windows can reinstall the devices.