NTSTATUS 0xC000029C (STATUS_VOLUME_NOT

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: The requested feature requires a newer on-disk metadata version than the volume currently uses.

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STATUS_POLICY_ONLY_IN_DS	STATUS_REMOTE_STORAGE_NOT_ACTIVE

STATUS_VOLUME_NOT_UPGRADED

The volume format has not been upgraded for this feature

A file-system driver can mount an older compatible volume while withholding features that require new metadata structures or invariants. The volume can therefore remain generally usable but reject one advanced operation.

An upgrade is a storage-format change, not an ordinary retry. It should be performed only with a verified backup, supported tooling, and a rollback or recovery plan appropriate to the volume’s role.

What to inspect

Identify the exact feature and minimum on-disk version it requires.
Verify OS, cluster, backup, encryption, and boot compatibility before upgrading.
Test the upgrade path on representative media and confirm free space and power stability.

References

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