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MF_E_BACKUP_RESTRICTED_LICENSE
MF_E_BACKUP_RESTRICTED_LICENSE is a license-policy restriction on backup. The failure does not indicate that the backup destination is full or that the media file cannot be read; the license itself is restricted from being backed up by this operation.
Report the policy restriction without weakening protection
- Identify the license or protected asset whose backup operation returned the HRESULT.
- Keep storage and file-system errors separate from the DRM result; a different disk does not change license policy.
- Determine whether the content provider supports reacquisition after migration instead of license backup and restore.
Protected media is governed by rights and policy that can differ from ordinary user data. Do not copy internal DRM state manually or bypass the protected-media APIs to force a backup. Such data can be machine-specific and participates in the platform trust model. The useful diagnostic output is the exact backup action, the protected asset/provider context, and this original HRESULT so the application can choose a supported renewal or reacquisition path.
Microsoft: protected-media rights acquisition · Microsoft: protected-media trust model · Wine: HRESULT definitions
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