Microsoft Windows Error Code 0x0000015F: How to Fix It

Medium 30-60 minutes Medium Severity Verified June 2026
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Error Code
0x0000015F
Brand
Microsoft Windows
Product Type
operating_system
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
Windows error code 0x0000015F (CONNECTED_STANDBY_TIMEOUT) occurs when your computer fails to properly enter or exit connected standby mode, causing the system to crash with a blue screen. This error is typically related to power management settings, outdated drivers, or hardware compatibility issues with modern standby features.
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Tools You'll Need

How to Fix Error Code 0x0000015F

  1. Restart Your Computer

    Save any open work before forcing shutdown as unsaved data will be lost

  2. Update Windows and Drivers

  3. Disable Fast Startup

  4. Run Power Troubleshooter

  5. Check Power Management Settings

  6. Disable Connected Standby

    Editing the registry can cause system issues if done incorrectly. Create a system restore point before making changes

  7. Run System File Checker

  8. Check Hardware Compatibility

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When to Call a Professional

Contact a computer technician if the error persists after trying all steps, if you're uncomfortable editing the registry, or if you suspect hardware failure. Professional diagnosis may be needed for motherboard or power supply issues.

Frequently Asked Questions

What causes Windows error code 0x0000015F?
Error 0x0000015F is caused by connected standby timeout issues, typically due to outdated drivers, incompatible hardware, corrupted system files, or incorrect power management settings preventing proper sleep/wake cycles.
Is it safe to disable connected standby in Windows?
Yes, disabling connected standby is safe and won't harm your computer. However, you may lose some modern standby features like receiving notifications while sleeping and faster wake times.
Can outdated BIOS cause error 0x0000015F?
Yes, an outdated BIOS can cause standby timeout errors. Check your motherboard manufacturer's website for BIOS updates that improve power management and modern standby compatibility.
Will this error cause data loss?
The blue screen error itself won't cause data loss, but any unsaved work will be lost when the system crashes. Always save your work frequently and consider enabling auto-save features in your applications.

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