Microsoft Windows Error Code 0x00000124: How to Fix It

Hard 2-4 hours Critical Severity Verified June 2026
Error Code
0x00000124
Brand
Microsoft Windows
Product Type
operating_system
Severity
Critical
DIY Difficulty
Hard
Estimated Fix Time
2-4 hours
Error code 0x00000124 (WHEA_UNCORRECTABLE_ERROR) is a critical Windows blue screen error that indicates a serious hardware problem detected by the Windows Hardware Error Architecture. This error typically points to failing CPU, RAM, motherboard, or power supply components that require immediate attention.
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Tools You'll Need

How to Fix Error Code 0x00000124

  1. Check System Temperatures

    Turn off and unplug the computer before cleaning internal components. Use anti-static precautions when handling hardware.
  2. Run Windows Memory Diagnostic

    Save all work before restarting as the memory test requires a system reboot.
  3. Update BIOS and Drivers

    Never interrupt a BIOS update process as this can permanently damage your motherboard. Ensure stable power supply during update.
  4. Test RAM with MemTest86

    Handle RAM modules carefully and only touch the edges. Use anti-static precautions to prevent component damage.
  5. Check Power Supply Stability

    Turn off and unplug the system before testing power connections. Be careful when using multimeter around electrical components.
  6. Reset BIOS to Defaults

    Removing CMOS battery will reset all BIOS settings including date/time. Take note of current settings before resetting.
  7. Test with Minimal Hardware

    Ensure proper grounding and handle components carefully during removal and installation.
  8. Run System File Check

Parts You May Need

DDR4 or DDR5 RAM modules
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Power supply unit
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CPU thermal paste
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Case fans or CPU cooler
Check Price on Amazon
DDR4 or DDR5 RAM modules
Check Price on Amazon
Power supply unit
Check Price on Amazon
CPU thermal paste
Check Price on Amazon
Case fans or CPU cooler
Check Price on Amazon
DDR4 or DDR5 RAM modules
Check Price on Amazon
Power supply unit
Check Price on Amazon
CPU thermal paste
Check Price on Amazon
Case fans or CPU cooler
Check Price on Amazon
DDR4 or DDR5 RAM modules
Check Price on Amazon
Power supply unit
Check Price on Amazon
CPU thermal paste
Check Price on Amazon
Case fans or CPU cooler
Check Price on Amazon
DDR4 or DDR5 RAM modules
Check Price on Amazon
Power supply unit
Check Price on Amazon
CPU thermal paste
Check Price on Amazon
Case fans or CPU cooler
Check Price on Amazon
DDR4 or DDR5 RAM modules
Check Price on Amazon
Power supply unit
Check Price on Amazon
CPU thermal paste
Check Price on Amazon
Case fans or CPU cooler
Check Price on Amazon
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When to Call a Professional

Contact a computer technician if error persists after following all steps, if you're uncomfortable working with computer hardware, or if the issue appears to be motherboard or CPU related. Professional diagnostic tools may be needed to identify specific failing components.

Frequently Asked Questions

What causes Windows error code 0x00000124?
Error 0x00000124 is caused by hardware failures detected by Windows Hardware Error Architecture, commonly involving CPU, RAM, motherboard, or power supply issues. Overheating, faulty components, or unstable power delivery are typical triggers.
Can I fix WHEA_UNCORRECTABLE_ERROR without replacing hardware?
Sometimes yes, through BIOS updates, driver updates, temperature management, or BIOS reset. However, if actual hardware components have failed, replacement is necessary to resolve the error permanently.
Is error 0x00000124 dangerous for my computer?
Yes, this is a critical error that can cause data loss and system instability. It indicates serious hardware problems that could worsen over time, potentially causing complete system failure if not addressed promptly.
How can I prevent Windows error 0x00000124 from happening again?
Maintain proper system cooling, keep BIOS and drivers updated, use quality power supplies, monitor system temperatures regularly, and avoid overclocking beyond stable limits. Regular hardware maintenance helps prevent component failures.
Can overclocking cause error code 0x00000124?
Yes, unstable overclocking of CPU, RAM, or GPU can trigger this error. If you've overclocked your system, return all settings to default values and test stability before gradually reapplying conservative overclock settings.