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SL_E_SFS_INVALID_SYNC
What this Software Protection result isolates
Keep the symbolic result SL_E_SFS_INVALID_SYNC together with HRESULT 0x8004E103. The producer is the serialized Token Store file format; at the low-level reader/writer that validates the Token Store container, descriptor table, token records and transaction state before licenses can be evaluated, Windows determined that a token record does not have a matching or valid synchronization marker at its header and footer.
This distinction matters because a sync-marker failure identifies record framing, whereas a data-hash failure identifies the protected payload. A later “not licensed” state should not replace the first exact HRESULT in logs.
Where it sits in the licensing pipeline
A structural Token Store error occurs before an individual product key can be accepted or rejected. To verify this, capture the token identifier, record offset, expected/actual synchronization values and whether the file was truncated or restored from backup.
Evidence worth preserving
- descriptor table and token offsets
- token name, extension, declared size and hash
- file-system result and Software Protection event
- Tokens.dat or the applicable licensing-store file
- store header and format version
Investigation sequence
- Identify the caller and operation instance that produced
0x8004E103. - Collect the code-specific evidence: capture the token identifier, record offset, expected/actual synchronization values and whether the file was truncated or restored from backup.
Similar symptoms, different conditions
| Result | Different condition |
|---|---|
SL_E_SFS_BAD_TOKEN_NAME | Compared with this result, a serialized token name violates the naming rules expected by the store index. |
SL_E_SFS_INVALID_FD_TABLE | Compared with this result, the container’s file-descriptor table is internally inconsistent, so token offsets and extents cannot be trusted. |
SL_E_SFS_BAD_TOKEN_EXT | Compared with this result, a token record carries an unsupported or malformed extension/type suffix. |
Recommended handling
Restore or regenerate the complete store rather than splicing the affected record.
Representative case: A partially copied store ends in the middle of a token record.
Actions that usually destroy useful evidence
- Do not edit or copy individual records inside the signed store.
- Do not assume a product-key change can repair a malformed container.
Technical references
- Rebuild the Tokens.dat file — official platform context used to interpret it.
- Software Licensing provider — supported state, API or recovery information relevant to this HRESULT.
- SoftwareLicensingService WMI class — reference for evidence collection and post-repair verification.
- Slmgr.vbs options — technical contract for the subsystem producing it.
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