Microsoft Windows Error Code 0x00000027: How to Fix It

Medium 1-2 hours Medium Severity Verified June 2026
Error Code
0x00000027
Brand
Microsoft Windows
Product Type
operating_system
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
1-2 hours
Error code 0x00000027 (RDR_FILE_SYSTEM) is a Blue Screen of Death that occurs when Windows encounters problems with network file sharing or the network redirector service. This error typically happens when trying to access network drives, shared folders, or during file transfers over a network connection.
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Tools You'll Need

How to Fix Error Code 0x00000027

  1. Restart Your Computer

    Save any open work before restarting as you may lose unsaved data
  2. Disconnect Network Drives

  3. Update Network Drivers

  4. Run Network Troubleshooter

  5. Reset Network Settings

    These commands will reset all network configurations to defaults
  6. Disable Antivirus Network Protection

    Only disable antivirus temporarily for testing - re-enable it immediately after
  7. Check Hard Drive for Errors

    This scan can take several hours to complete depending on drive size
  8. Update Windows

  9. Perform System File Check

Parts You May Need

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When to Call a Professional

Call a computer technician if the error persists after trying all steps, if you're uncomfortable with command line operations, or if the error occurs frequently and impacts critical network operations in a business environment.

Frequently Asked Questions

What causes Windows error code 0x00000027?
Error 0x00000027 is typically caused by corrupted network drivers, faulty network hardware, antivirus interference with network connections, or problems with mapped network drives and file sharing services.
Is error 0x00000027 dangerous for my computer?
This error is not dangerous to your hardware but indicates a software problem that needs fixing. It can cause system crashes and data loss if not resolved, especially when working with network files.
Can I prevent RDR_FILE_SYSTEM errors?
Keep Windows and network drivers updated, avoid forcing shutdowns while accessing network files, use reliable network hardware, and regularly run Windows updates to prevent most RDR_FILE_SYSTEM errors.
Will I lose data from this error?
The blue screen crash can cause loss of unsaved work, but your stored files are typically safe. However, always backup important data when experiencing recurring system errors.