What does HRESULT 0xC00D2754 (NS_E_DRM_HARDWARE_INCONSISTENT) mean?

NS_E_DRM_HARDWARE_INCONSISTENT

What failed in WMDRM

0xC00D2754 maps to NS_E_DRM_HARDWARE_INCONSISTENT. Read it as a result from local license store, secure store and machine binding: stored DRM state no longer matches the current hardware identity. Keeping the “hardware inconsistent” boundary intact prevents a later playback message from hiding the original DRM failure.

Compare the last known working hardware ID with recent firmware, motherboard or storage changes.

Place in the DRM workflow

The workflow around this result matters: 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. In addition, machine-bound state cannot be diagnosed safely by copying store files between computers or by deleting the original before evidence is preserved.

State to capture before retry

• Code-specific proof: compare the last known working hardware ID with recent firmware, motherboard or storage changes.
• Protected identity: first store API call that failed: open, enumerate, save, close or query.
• Operation state: license identifier and content key identifier (KID).
• Persistence or transport: store path, file generation, access result and underlying system error.
• Security context: hardware identity and the last hardware or operating-system change.
• Correlation point: checkpoint, secure-store and registry persistence sequence.

For the “hardware inconsistent” investigation, use KIDs, license IDs, hashes, certificate thumbprints, sizes and timestamps where possible. Do not place content keys, complete license blobs, passwords, cookies or decrypted media in ordinary logs.

A useful investigation order

1. Locate the earliest API return, callback or event containing this result and 0xC00D2754.
2. Identify the exact content, license, store, device or migration object instance involved in “hardware inconsistent”.
3. Determine whether “hardware inconsistent” occurred before network exchange, during response validation, while enforcing policy, or while committing protected state.
4. Perform the code-specific check: compare the last known working hardware ID with recent firmware, motherboard or storage changes.
5. Make one targeted change — use supported restore, migration or reacquisition for the new identity — and repeat the same producing operation.

Targeted fix

To correct this, use supported restore, migration or reacquisition for the new identity. Preserve the original content/header, store or migration material until the “hardware inconsistent” operation succeeds and survives a fresh application object or required restart.

Representative case: A motherboard replacement changes the machine binding used by existing licenses.

What not to do first

• 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.

Nearby results with different meanings

Several values can accompany the “hardware inconsistent” condition in one incident. Order the event chain by timestamp and prefer the first code produced at the lowest specific boundary over a later player-level summary.

Verification after correction

After the repair, recreate the WMDRM object and run the smallest reproducer. Confirm that 0xC00D2754 no longer occurs, that the intended license action completes, and that no store, certificate, clock or migration warning replaces it.

Code-specific operational note

The user-facing message “The licenses for your media files are corrupted.

Technical references

• Licenses and the local license store — API and state rules for the DRM operation described here.
• Enumerating licenses in the local store.
• DRM client interfaces.
• Windows Media DRM error codes — API and state rules for the DRM operation described here.