How to Fix bthhfenum.sys BSOD on Windows

When BSOD is related to bthhfenum.sys, your system crashes displays the error message "SYSTEM THREAD EXCEPTION NOT HANDLED". This error refers to the bthhfenum.sys file, which is essential for the Bluetooth hands-free audio and call control HID enumerator functions in Windows.

The error occurs due to obsolete or corrupt drivers, it can also be due to general hardware conflicts or malfunctions, system updates that were incomplete or introduced compatibility problems. For more information continue reading the publication.

How to Fix bthhfenum.sys BSOD on Windows

Potential Causes:

Corrupted System Files: Damaged system files, including bthhfenum.sys, can lead to unexpected system crashes. 

Software Conflicts: Third-party software or services might interfere with the Bluetooth driver, causing system instability.

Outdated or Faulty Drivers: Outdated or corrupted Bluetooth or audio drivers can malfunction and trigger BSOD errors.

BIOS Issues: An outdated BIOS version may not provide optimal compatibility with your hardware, leading to potential conflicts.

Recommended Troubleshooting Steps:

System File Repair:

Utilize the built-in System File Checker (SFC) and Deployment Image Servicing and Management (DISM) tools to scan for and repair corrupted system files:

Open a Command Prompt window with administrative privileges (search for "cmd" in the Start Menu, right-click on "Command Prompt," and select "Run as administrator").

Execute the following command and press Enter:

sfc /scannow

Once SFC completes, run the DISM scan using this command:

DISM /Online /Cleanup-Image /RestoreHealth

Restart your computer after both scans are finished.

Clean Boot for Conflict Isolation:

A clean boot isolates potential software conflicts that might be causing the BSOD error:

Press the Windows key + R, type msconfig , and press Enter.

Go to the "Services" tab and check the box labelled "Hide all Microsoft services."

Click "Disable all," then navigate to the "Startup" tab and disable all startup programs.

Restart your computer in this clean boot state. If the BSOD doesn't occur, systematically re-enable services and startup programs one by one to identify the culprit.

Update or Reinstall Device Drivers:

Outdated or corrupted Bluetooth or audio drivers can contribute to the BSOD:

Access Device Manager by right-clicking on the Start button and selecting it.

Expand "Bluetooth" and "Sound, video and game controllers."

Right-click on each relevant driver and select "Update driver" to install the latest version from Windows Update.

If updating doesn't resolve the issue, right-click the driver again and select "Uninstall device." Restart your computer, and Windows will automatically reinstall the driver.

BIOS Update (For Advanced Users):

Updating the BIOS can improve hardware compatibility and potentially resolve the BSOD error. This process can be risky, so proceed with caution and only if comfortable with BIOS updates. Refer to your motherboard manufacturer's instructions for specific update procedures.

Clean Windows Installation (Last Resort):

If all else fails, consider a clean installation of Windows 10. This removes all files and programs, providing a fresh system state. Ensure you back up important data before proceeding.

Additional Considerations:

Running a comprehensive malware scan with your preferred antivirus software is recommended to rule out malware-related causes.

If the BSOD error persists after following these steps, consulting a qualified IT professional is recommended for further diagnosis and repair. They can leverage advanced tools and expertise to pinpoint the exact cause and implement an appropriate solution.

Encountering the bthhfenum.sys Blue Screen of Death (BSOD) error may disrupt your workflow, but with the above steps you will be able to effectively troubleshoot and resolve the error ensuring a stable and efficient Windows 10 experience.