BSOD 55 (FLOPPY_INTERNAL_ERROR): causes and diagnosis

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: Windows stopped because the legacy floppy driver reported internal state corruption.

Could be also:
Constant	Type	OS
ERROR_DEV_NOT_EXIST	Win32 error	Windows
ENOANO	errno	Linux
ENOBUFS	errno	Mac
EBADSLT	errno	Solaris

FLOPPY_INTERNAL_ERROR

Legacy floppy driver internal failure

FLOPPY_INTERNAL_ERROR is bug check code 0x00000037. This bug check belongs to the old floppy storage path. It is most useful when a dump or boot trace still shows the floppy controller driver, emulated floppy hardware, or firmware-provided legacy disk device state.

How to read it in a dump

Treat it as a storage-driver or legacy-device crash, not as a generic disk-full condition.
On virtual machines, check whether a virtual floppy device is still presented to the guest.
The driver stack and device object are more useful than the symbolic name alone.

What to check

Remove unused virtual floppy devices from VM settings.
Check boot-start storage drivers and firmware settings if the crash happens during startup.
Use the dump stack to decide whether the failure is a real controller path, an emulator, or stale legacy configuration.

References

Looking for a different code? Search another status or error code.