device manager

Code 39 Unable to load driver file

error meaning

Windows could not load a corrupt or missing device driver.

Frequently Occurring Situations

The device does not work after deleting the driver file or security isolation.

First thing to check

Check the security program's quarantine history and driver installation history.

main causes

  • Missing driver files
  • package damage
  • Secure software isolation

Step-by-step solution

If it is checked and resolved from above, you do not need to proceed to the next step.

1. Check occurrence conditions

The device does not work after deleting the driver file or security isolation.

Difficulty Easy · Estimated time 5 minutes

  1. Check the security program's quarantine history and driver installation history.

Check points: Record the error code, when it occurred, and any recent changes.

2. Driver File Unable to Load Troubleshooting Procedure

Windows could not load a corrupt or missing device driver.

Difficulty Moderate · Estimated time 10~30 minutes

  1. Re-obtain the official manufacturer package and repair-install the driver.
  2. If it occurs on multiple primary devices, check system files with DISM and SFC.

Check points: Check driver file loading and device operation together.

Frequently Asked Questions

Related PC FIX Issues

official reference document

Content review date: 2026-10-07

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