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
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Tools You'll Need
- Administrator access
- Ethernet cable (for testing)
- Internet connection
How to Fix Error Code 0x00000027
-
Restart Your Computer
Save any open work before restarting as you may lose unsaved data -
Disconnect Network Drives
-
Update Network Drivers
-
Run Network Troubleshooter
-
Reset Network Settings
These commands will reset all network configurations to defaults -
Disable Antivirus Network Protection
Only disable antivirus temporarily for testing - re-enable it immediately after -
Check Hard Drive for Errors
This scan can take several hours to complete depending on drive size -
Update Windows
-
Perform System File Check
Parts You May Need
Ethernet cable
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Ethernet cable
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Ethernet cable
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Ethernet cable
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USB WiFi adapter
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Ethernet cable
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USB WiFi adapter
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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.