HRESULT 0xC00D278B (NS_DRM_E_MIGRATION_UPGRADE_WITH_DIFF

Status / error code:

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Constant name:

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Operating System:

Description:

A problem has occurred in the Digital Rights Management component during license migration. Contact Microsoft product support.%0.

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NS_E_DRM_MIGRATION_IMPORTER_NOT_AVAILABLE	NS_DRM_E_MIGRATION_SOURCE_MACHINE_IN_USE

NS_DRM_E_MIGRATION_UPGRADE_WITH_DIFF_SID

The failing WMDRM boundary

0xC00D278B maps to NS_DRM_E_MIGRATION_UPGRADE_WITH_DIFF_SID. Read it as a result from license and secure-state migration: migration or upgrade sees a different user SID than the protected source state expects. Keeping the “migration upgrade with diff sid” boundary intact for NS_DRM_E_MIGRATION_UPGRADE_WITH_DIFF_SID prevents a later playback message from hiding the original DRM failure.

The built-in message summarizes the user-visible outcome, while the symbolic phrase “migration upgrade with diff sid” preserves the exact WMDRM boundary for diagnosis. For this code, the proof step is to record source and target SIDs and account-migration history.

Place in the DRM workflow

The workflow around NS_DRM_E_MIGRATION_UPGRADE_WITH_DIFF_SID matters: migration is not equivalent to copying license-store files: the importer validates source state, target support and protected identities. In addition, a migration image, target-state corruption and an already imported license are independent outcomes and should not be collapsed into one generic restore failure.

State to capture before retry

Capture the first NS_DRM_E_MIGRATION_UPGRADE_WITH_DIFF_SID occurrence before retry or teardown changes state. The smallest useful record contains:

Code-specific proof: record source and target SIDs and account-migration history.
Protected identity: importer plug-in availability and current operation state.
Operation state: per-license duplicate or import result.
Persistence or transport: source and target OS versions and user SIDs.
Security context: migration image identity, hash and creation time.
Correlation point: legacy V2 secure-store entry and supplied password.

Prefer IDs, hashes, sizes, and timestamps. Never log keys, passwords, licenses, or decrypted media.

A useful investigation order

Locate the earliest API return, callback or event containing NS_DRM_E_MIGRATION_UPGRADE_WITH_DIFF_SID and 0xC00D278B.
Identify the exact content, license, store, device or migration object generation involved in “migration upgrade with diff sid”.
Determine whether “migration upgrade with diff sid” occurred before network exchange, during response validation, while enforcing policy, or while committing protected state.
Perform the code-specific check: record source and target SIDs and account-migration history.
Make one narrow correction — run the supported migration under the matching account context — and repeat the same producing operation.

Narrow remediation

The corrective direction is to run the supported migration under the matching account context. Preserve the original content/header, store or migration material for NS_DRM_E_MIGRATION_UPGRADE_WITH_DIFF_SID until the operation succeeds and survives a fresh application object or required restart.

Representative case: A profile is copied to a newly created account with a different SID.

What not to do first

Avoid running concurrent playback or DRM operations against the source while migration owns it. That changes evidence without demonstrating why NS_DRM_E_MIGRATION_UPGRADE_WITH_DIFF_SID was produced.
Avoid editing migration images or combining data from different source machines. That shortcut can create a second store, identity or policy problem.
Do not reduce NS_DRM_E_MIGRATION_UPGRADE_WITH_DIFF_SID to “DRM failed” in telemetry; retain the HRESULT, symbolic name, operation and object identity.

Nearby results with different meanings

Result	Different boundary
`NS_DRM_E_MIGRATION_SOURCE_MACHINE_IN_USE`	The source DRM environment is busy with another operation during migration.
`NS_E_DRM_MIGRATION_IMPORTER_NOT_AVAILABLE`	The required migration importer component is unavailable.
`NS_DRM_E_MIGRATION_TARGET_MACHINE_LESS_THAN_LH`	The target operating system is older than the migration mechanism supports.

Order the NS_DRM_E_MIGRATION_UPGRADE_WITH_DIFF_SID event chain by timestamp; prefer the earliest specific result.

Verification after correction

After the repair, recreate the WMDRM object and run the smallest reproducer for NS_DRM_E_MIGRATION_UPGRADE_WITH_DIFF_SID. Confirm that 0xC00D278B 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 symbolic phrase “migration upgrade with diff sid” is the important search and telemetry key for NS_DRM_E_MIGRATION_UPGRADE_WITH_DIFF_SID. Keep it beside the exact value 0xC00D278B; the official message “A problem has occurred in the Digital Rights Management component during license migration. Contact Microsoft product support.” is useful to users, but it does not identify the producing API, object generation or protected identity on its own.

Technical references

Backing up and restoring DRM licenses — API and state rules relevant to this boundary.
Obtaining the required DRM library — platform documentation used to distinguish this result from adjacent results.
DRM client programming guide — official Windows Media DRM context for NS_DRM_E_MIGRATION_UPGRADE_WITH_DIFF_SID.
Windows Media DRM error codes

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