Microsoft Windows Error Code 0xC0000038: How to Fix It

Medium 30-60 minutes Medium Severity Verified July 2026
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Error Code
0xC0000038
Brand
Microsoft Windows
Product Type
operating_system
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
Error code 0xC0000038 (STATUS_DEVICE_ALREADY_ATTACHED) indicates that a device driver is trying to attach itself to the system's device stack but another driver is already attached. This typically occurs after installing new hardware or updating drivers, causing crashes or boot failures. Follow these steps to resolve the conflict.
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Tools You'll Need

How to Fix Error Code 0xC0000038

  1. Boot into Safe Mode

    If you cannot boot normally, use a Windows installation media to access Recovery Environment.

  2. Open Device Manager

  3. Identify the Conflicting Driver

  4. Uninstall the Conflicting Driver

    Do not uninstall essential system drivers unless you are certain they are the cause.

  5. Run System File Checker (SFC)

  6. Use DISM Tool

  7. Perform a Clean Boot

Parts You May Need

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When to Call a Professional

If the error persists after all steps, the issue may be due to corrupted system files or hardware incompatibility. Contact a technician or Microsoft Support for advanced troubleshooting.

Frequently Asked Questions

What causes error 0xC0000038 in Windows?
This error is caused by a driver conflict where a device driver tries to attach to a device stack that already has another driver attached. It often occurs after installing new hardware, updating drivers, or Windows updates.
Can I fix error 0xC0000038 without reinstalling Windows?
Yes, most cases can be resolved by uninstalling conflicting drivers, running SFC/DISM, or performing a clean boot. Reinstallation is a last resort.
Is error 0xC0000038 a blue screen of death?
Yes, this error typically appears as a blue screen (BSOD) with the stop code 0xC0000038, often during boot or after driver installation.
Does error 0xC0000038 indicate hardware failure?
Not necessarily. It is usually a driver/software conflict. However, if a newly installed device is faulty, it could trigger the error.
How do I prevent error 0xC0000038 in the future?
Always install drivers from official sources, avoid using beta drivers, and create a system restore point before making changes. Keep Windows updated.

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