Error code

Windows 0x00000124

WINDOWS0x00000124
System Error Code· A POSIX/system errno returned when a system call fails.

What it means

WHEA_UNCORRECTABLE_ERROR — a fatal hardware error reported through the Windows Hardware Error Architecture (WHEA)..

How to fix it

  1. Reset CPU and memory overclocks to default.
  2. check cooling and clean dust to fix overheating.
  3. run Windows Memory Diagnostic and a CPU stress test.
  4. update the system BIOS/UEFI firmware.
  5. test or replace the power supply and suspect components.

Not affiliated with Windows. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.