What does BSOD 0x186 (WVR_LIVEDUMP_CRITICAL_ERROR) mean?

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: Windows captured a WVR live dump for a critical replication error.

Could be also:
Constant	Type	OS
ERROR_CLOUD_FILE_NOT_UNDER_SYNC_ROOT	Win32 error	Windows

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WVR_LIVEDUMP_STATE_FAILURE	VIDEO_DWMINIT_TIMEOUT_FALLBACK_BDD

WVR_LIVEDUMP_CRITICAL_ERROR

Windows Volume Replication critical error for WVR_LIVEDUMP_CRITICAL_ERROR

WVR_LIVEDUMP_CRITICAL_ERROR is bug check code 0x00000186.

This is the high-severity WVR diagnostic bucket. It indicates that the replication component considered the condition critical enough to capture detailed state.

How to read it in a dump

Use the parameters and WVR component data to distinguish corruption, timeout, service failure, and resource exhaustion.
Correlate with Storage Replica event IDs and cluster events.
The live dump should be treated as evidence, not as a complete explanation.

What to check

Collect both partner logs, cluster logs, and storage diagnostics.
Check whether the issue followed failover, firmware update, or network/storage outage.
Escalate with the live dump when WVR component data is needed.

References

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