Microsoft Windows Error Code 0xC0000093: How to Fix It

Easy 20-40 minutes Medium Severity Verified June 2026
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Error Code
0xC0000093
Brand
Microsoft Windows
Product Type
operating_system
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
20-40 minutes
Error 0xC0000093, also known as STATUS_FLOAT_UNDERFLOW, occurs when a program attempts a floating-point operation that results in a value too small to represent. This often indicates a software bug or corrupted system files. The fix involves updating or reinstalling the problematic program and repairing Windows system files.
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Tools You'll Need

How to Fix Error Code 0xC0000093

  1. Update or Reinstall the Problematic Program

  2. Run System File Checker (SFC)

  3. Run DISM Tool

  4. Check for Windows Updates

  5. Test with a Clean Boot

    This disables all non-Microsoft services temporarily.
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When to Call a Professional

If the error persists after trying all steps, especially if it occurs during system startup or in multiple programs, consider contacting a Windows technician or Microsoft Support. This could indicate deeper system corruption or hardware issues.

Frequently Asked Questions

What does error 0xC0000093 mean?
It means a program tried to perform a floating-point calculation that resulted in a number too small for the system to handle, often due to a software bug or corrupted files.
Can error 0xC0000093 damage my computer?
No, it is a software-level error and won't cause physical damage, but it may cause crashes or instability in the affected program.
Do I need to reinstall Windows to fix this error?
Rarely. The error is usually fixed by updating the problematic program or repairing system files. Reinstalling Windows is a last resort.
Which programs commonly cause this error?
It can occur in any program using intensive floating-point math, such as scientific software, games, or financial applications. Check Event Viewer for details.
How do I find out which program causes the error?
Open Event Viewer (eventvwr.msc), go to Windows Logs > Application, and look for error events with ID 0xC0000093. The source will indicate the program.

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