X64 Exception Type 0x12 - Machine-check Exception (2026)

I just got a BSOD on my x64 system with exception type 0x12 – a . From what I understand, this is a hardware-level exception, not a software bug.

Thanks. Would you like a shorter version (e.g., for Twitter/Reddit title), or a step-by-step guide to extract the MCE error details from the dump? x64 exception type 0x12 - machine-check exception

10.0.22621.2428 Dump file attached: 112924-6937-01.dmp I just got a BSOD on my x64

Hey all,

I know a machine check exception means the CPU detected an unrecoverable hardware error (e.g., cache parity error, bus timeout, or memory controller issue). Windows just reports it as 0x12 . this is a hardware-level exception

Here’s a forum-style post you could use or adapt regarding the . Title: BSOD 0x12 (Machine Check Exception) on x64 – hardware or driver?