Microsoft Windows Error Code 0xC0000090: How to Fix It

Easy 30-60 minutes Medium Severity Verified June 2026
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Error Code
0xC0000090
Brand
Microsoft Windows
Product Type
operating_system
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
30-60 minutes
Error 0xC0000090 indicates an invalid floating-point operation, often due to corrupted system files, buggy software, or outdated drivers. This guide provides clear steps to resolve the issue and prevent recurrence.
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Tools You'll Need

How to Fix Error Code 0xC0000090

  1. Run System File Checker (SFC)

    Do not close the Command Prompt until the scan finishes.

  2. Run DISM Tool

  3. Update Graphics and Chipset Drivers

    Ensure you have a stable internet connection.

  4. Check for Windows Updates

    Back up important data before installing major updates.

  5. Perform a Clean Boot

    This disables third-party services. Re-enable them after troubleshooting.

  6. Repair Corrupted System Files with SFC in Safe Mode

    Safe Mode loads only essential drivers; some features may be limited.
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When to Call a Professional

If the error persists after all steps, consider consulting a professional technician, as it may indicate deeper hardware issues (e.g., failing CPU or RAM).

Frequently Asked Questions

What causes Windows error 0xC0000090?
This error usually results from corrupted system files, outdated or faulty device drivers (especially graphics), or problematic software that performs invalid floating-point operations.
Can error 0xC0000090 be fixed without reinstalling Windows?
Yes, often it can be resolved by running SFC and DISM, updating drivers, or performing a clean boot. Reinstalling Windows is a last resort.
Is error 0xC0000090 hardware-related?
In rare cases, it can be caused by failing hardware, such as a faulty CPU or RAM. If software fixes fail, test your hardware using diagnostic tools.
How do I back up my data before fixing error 0xC0000090?
You can use File History (Settings > Update & Security > Backup) or manually copy important files to an external drive or cloud storage.
Will a system restore fix error 0xC0000090?
A system restore to a point before the error began can help if the issue is caused by a recent software change. Access it via Control Panel > Recovery > Open System Restore.

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