What does HRESULT 0x80045374 (FSRM_E_INVALID_FOLDER_PROPERTY_STORE) mean?

 
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FSRM_E_INVALID_FOLDER_PROPERTY_STORE

FSRM_E_INVALID_FOLDER_PROPERTY_STORE is the failure HRESULT 0x80045374 (signed decimal -2147200140, unsigned decimal 2147767156). Its severity bit is 1, facility is 4 (FACILITY_ITF), and the facility-specific code field is 0x5374.

The folder classification property store is not valid

File Server Resource Manager returns this code when the metadata store associated with a folder cannot be accepted as a valid folder property store. The failure belongs to classification metadata, not to the ordinary file contents in that folder. Public documentation does not expose a single repair API for this HRESULT, so the affected storage module, folder, and operation must be identified from the calling context and event log.

AllStat records the official condition as: “File Server Resource Manager encountered an invalid folder property store.” The wording should be interpreted at this FSRM stage, not as a generic file-system or COM failure.

Where the failure boundary lies

FSRM classification can keep properties in a storage module rather than in the visible file or folder name. This result says the persisted folder-level representation cannot be consumed correctly. It is different from an unknown property definition, a missing property value, or a rule that simply does not match. Deleting classification definitions before identifying the damaged store can destroy policy context without repairing the persisted metadata.

Likely causes to separate

  • The folder property metadata is truncated, malformed, or inconsistent with the property definitions currently registered on the server.
  • A storage-module upgrade, rollback, or interrupted write leaves a representation that the active FSRM module cannot parse.
  • The folder was restored or copied without all metadata streams or security information required by the chosen storage module.
  • A third-party classifier or storage module wrote data that violates the format expected by the FSRM pipeline.

Evidence worth preserving

  • Record the exact folder path, volume, classification operation, property name, and storage-module identity before changing metadata.
  • Preserve the FSRM classification report and Application log events from the same run, including any nested Win32 or module HRESULT.
  • Compare the failing folder with a nearby folder on the same volume that uses the same property definitions and module versions.
  • Note whether GetFileProperty, SetFileProperty, scheduled classification, or a file-management condition first encountered the store.

Diagnostic sequence

  • Verify that the property definitions referenced by rules still exist with the same names, types, and allowed values.
  • Test a newly created folder on the same NTFS volume; success there separates a folder-specific store problem from a server-wide module failure.
  • Check whether backup, migration, deduplication, antivirus, or file-copy tooling omitted alternate data streams or security descriptors.
  • If a vendor storage module owns the format, collect its version and diagnostic output rather than attempting an undocumented binary edit.

Retry and recovery

Recovery should rebuild or replace only the invalid property metadata after the property definitions and owning module are known. Export configuration and preserve a sample before clearing values. A retry is meaningful after the store has been recreated, the module repaired, or the folder restored with complete metadata; repeatedly rerunning classification against the unchanged store normally reproduces the same failure.

What this HRESULT does not establish

The HRESULT does not prove that user files are corrupt, and it does not identify which property caused validation to fail. It also does not establish that the entire FSRM configuration database is damaged. Scope the problem to the folder store before considering service-wide repair.

Difference from nearby FSRM results

FSRM_E_PROPERTY_MUST_APPLY_TO_FOLDERS rejects a property definition that cannot be used on folders. FSRM_E_INVALID_FOLDER_PROPERTY_STORE instead concerns the persisted folder property store itself.

Practical scenario

A server is restored from a backup that preserved files but omitted metadata used by a classification storage module. Scheduled classification reaches one restored folder and returns this code, while new folders classify normally. The administrator preserves the affected folder as evidence, restores the missing metadata or clears only the invalid store, and then reclassifies that scope.

Guidance for software and telemetry

Software should log the folder identity and storage-module boundary, not collapse this result into “classification failed.” Management tooling should offer a scoped repair workflow and require an explicit backup before removing persisted property data.

Official Microsoft references

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