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NS_E_DRM_LICENSE_STORE_ERROR
The exact DRM condition
NS_E_DRM_LICENSE_STORE_ERROR is Windows Media DRM HRESULT 0xC00D2712. It identifies the local license repository failed before a particular license operation could complete. The useful scope is the protected repositories that hold licenses and DRM state, together with the hardware and checkpoint data used to bind that state to one installation; it is not a generic statement that the media player, network or file system failed.
Capture the first store API, backing file, service account and underlying I/O or integrity result.
The surrounding protocol and store state
A license is stored in the protected local license store after acquisition; a store failure is therefore distinct from a server refusing to issue a license. Machine-bound state cannot be diagnosed safely by copying store files between computers or by deleting the original before evidence is preserved.
Evidence worth preserving
- Code-specific proof: capture the first store API, backing file, service account and underlying I/O or integrity result.
- Protected identity: store path, file generation, access result and underlying system error.
- Operation state: hardware identity and the last hardware or operating-system change.
- Persistence or transport: checkpoint, secure-store and registry persistence sequence.
- Security context: first store API call that failed: open, enumerate, save, close or query.
- Correlation point: license identifier and content key identifier (KID).
Related codes and the diagnostic split
| Result | Different condition |
|---|---|
NS_E_DRM_SECURE_STORE_ERROR | The protected secure-state repository cannot complete the requested operation. |
NS_E_DRM_LICENSE_STORE_SAVE_ERROR | An acquired or updated license could not be committed to the local license store. |
NS_E_DRM_SECURE_STORE_UNLOCK_ERROR | The client cannot unlock secure-store state required for DRM processing. |
Diagnostic sequence
- Prove the boundary by ensuring you can capture the first store API, backing file, service account and underlying I/O or integrity result.
- After you repair access or restore supported store state while preserving the original files, verify both the requested right and the final store/device state.
Correcting the producing condition
Resolve the underlying condition directly: repair access or restore supported store state while preserving the original files. A player reinstall, reboot or new license request is useful only when it changes the condition “license store error” and can be verified against the original evidence.
Representative case: License enumeration fails immediately after the store directory becomes unreadable.
Actions that do not prove a fix
- Avoid deleting or resetting DRM state before recording hashes, timestamps and the first store error.
- Avoid copying a protected license store from another computer as a repair.
Regression check
Repeat the operation that originally returned it. Assert the exact HRESULT at the producing API in the failing “license store error” fixture; then change only the relevant precondition and confirm that the corrected run completes without substituting a neighboring DRM result. After correcting it, verify the requested action and the final license-store, secure-clock, device or migration state relevant to “license store error”.
Code-specific operational note
The user-facing message “License storage is not working.
Technical references
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