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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
- Microsoft: File Management Control Codes
- Microsoft: GetVolumeInformation
- Microsoft Open Specifications: NTSTATUS values
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