Microsoft Windows Error Code 0xC0000065: How to Fix It

Medium 30-60 minutes Medium Severity Verified June 2026
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Error Code
0xC0000065
Brand
Microsoft Windows
Product Type
operating_system
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
Error code 0xC0000065, also known as STATUS_INVALID_PIPE_STATE, indicates that a named pipe communication is in an invalid state. This typically occurs when an application tries to read or write to a pipe that is not properly connected or has been closed. The error can be resolved by restarting services, updating drivers, or repairing system files.
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How to Fix Error Code 0xC0000065

  1. Restart Your Computer

  2. Run System File Checker (SFC)

    Do not close the Command Prompt until the scan is finished.

  3. Run DISM Tool

    Requires internet connection as it downloads files from Windows Update.

  4. Check for Windows Updates

  5. Reinstall the Affected Application

    Back up any application data before uninstalling.

  6. Perform a Clean Boot

    This disables third-party services; re-enable them after troubleshooting.

  7. Update Device Drivers

  8. Run Windows Memory Diagnostic

    Save work before restarting.
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When to Call a Professional

If the error persists after all steps, consider a Windows repair installation or contact Microsoft Support. A professional may be needed if hardware issues (e.g., faulty RAM or motherboard) are suspected.

Frequently Asked Questions

What causes error 0xC0000065?
This error is caused by an application attempting to communicate through a named pipe that is in an invalid state (e.g., closed or not properly initialized). Common triggers include corrupted system files, outdated drivers, or software conflicts.
Can I fix error 0xC0000065 without reinstalling Windows?
Yes, most cases can be resolved by running SFC and DISM scans, updating drivers, or reinstalling the problematic application. A full Windows reinstall is rarely needed.
Is error 0xC0000065 a sign of hardware failure?
Usually not. It's a software-related error. However, if it occurs frequently and other fixes fail, faulty RAM or storage could be a contributing factor.
Does this error affect only specific Windows versions?
Error 0xC0000065 can appear on Windows 7, 8, 10, and 11. The fixes are similar across versions.
How do I check if a specific application is causing the error?
Use a clean boot to disable all non-Microsoft services and startup items. If the error stops, enable services one by one to identify the offending program. Also check Event Viewer for detailed logs.

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