0X00000124

Blue Screen (BSOD) WHEA_UNCORRECTABLE_ERROR Applies to: Windows 7, Windows 10, Windows 11

What it means

A hardware-level error was detected — often CPU, RAM, or power delivery, especially in overclocked systems.

Also seen as: WHEA_UNCORRECTABLE_ERROR, 0x124

Quick fix steps

  1. If overclocked, revert CPU/RAM to default (stock) settings first.
  2. Update your BIOS/UEFI firmware to the latest version.
  3. Check CPU and system temperatures for overheating, and test RAM with Windows Memory Diagnostic.
For the full step-by-step walkthrough, see How to Read and Respond to Any Blue Screen.

Frequently Asked Questions

Does WHEA_UNCORRECTABLE_ERROR mean my CPU is failing?
It can indicate a genuine hardware fault (CPU, RAM, or motherboard), but it's also commonly caused by an unstable overclock or overheating rather than a permanently failing component.
Is this more serious than other blue screen codes?
It tends to point more directly at hardware than software compared to many other stop codes, so it's worth taking seriously — reverting any overclocks and checking temperatures first is the reasonable starting point.

Other error codes