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NS_E_WMP_DRM_CORRUPT_BACKUP
The exact DRM condition
This HRESULT is specific: NS_E_WMP_DRM_CORRUPT_BACKUP appears because the Player restore workflow cannot interpret a usable rights backup set. Within Windows Media Player rights processing, this result is raised while processing the Player layer that opens protected media, queries the local license state, performs silent or interactive rights acquisition, validates DRM components and applies play, burn or sync restrictions.
To prove this boundary rather than infer it from a dialog, inventory the backup files, hashes, creation host and restore-set metadata before retrying.
Fields for a reproducible report
| Field | Value |
|---|---|
| Direct check | inventory the backup files, hashes, creation host and restore-set metadata before retrying |
| Policy input | requested action plus the exact license, certificate, profile, output or registration property evaluated by this result |
| Temporal state | trusted/system time, validity interval, request sequence and retry number when they influence this result |
What to log
It is meaningful only while the following state remains associated with one operation: content KID and header, license-store entry, requested action, acquisition URL, user/store context, secure clock and DRM component generation. Preserve the content KID, requested action, license-state query, acquisition callback sequence, server response category and the first lower-level DRM HRESULT for this operation.
That observation distinguishes it from file corruption because the Player restore workflow cannot interpret a usable rights backup set.
Expected state change
It should be modeled as a failed precondition, not as an arbitrary media exception. Demonstrate the precondition by choosing to inventory the backup files, hashes, creation host and restore-set metadata before retrying, and remove it by choosing to restore from an intact matching backup or reacquire licenses when the issuer permits it. Keeping the result transition intact also shows whether a retry reused stale state or actually reevaluated the corrected input.
Scope and consequences
The Player restore workflow cannot interpret a usable rights backup set.
Troubleshooting order
- Preserve it and
0xC00D11B4before cleanup, fallback or another media item changes the context. - Compare the failure with a known-good case that changes only the property named by this condition: the Player restore workflow cannot interpret a usable rights backup set.
- Apply the targeted fix: restore from an intact matching backup or reacquire licenses when the issuer permits it.
- Associate this result with the current Windows Media Player rights-processing object and the requested action.
- Run the direct check: inventory the backup files, hashes, creation host and restore-set metadata before retrying.
Related codes, different contracts
| Result | Why it points elsewhere |
|---|---|
NS_E_WMG_PREROLLLICENSEACQUISITIONNOTALLOWED | a playlist preroll path attempted license acquisition where the Player does not permit that interactive operation |
NS_E_WMG_LICENSE_TAMPERED | the Player wrapper received evidence that stored media usage rights fail integrity validation |
NS_E_WMP_DRM_LICENSE_SERVER_UNAVAILABLE | the Player cannot reach or complete exchange with the configured license service |
Change the rejected precondition
Correct this layer directly and restore from an intact matching backup or reacquire licenses when the issuer permits it.
Technical references
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