| Previous | Next |
| NS_E_WMP_CD_STASH_NO_SPACE | NS_E_WMP_DRM_INVALID_SIG |
NS_E_WMP_DRM_NEW_HARDWARE
Start with the producing object
The useful reading of NS_E_WMP_DRM_NEW_HARDWARE is narrow: machine binding changed enough that previously stored rights no longer validate against the current hardware identity. The owner is Windows Media Player rights processing; its working contract covers 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.
A decisive test is to compare hardware-change history and the license-store machine binding without altering either.
Relevant runtime state
The important objects are content KID and header, license-store entry, requested action, acquisition URL, user/store context, secure clock and DRM component generation. Evidence for this HRESULT should correlate the content KID, requested action, license-state query, acquisition callback sequence, server response category and the first lower-level DRM HRESULT.
The scope stays narrow: machine binding changed enough that previously stored rights no longer validate against the current hardware identity. Other content or actions may still be valid.
Do not diagnose the wrong layer
The established fact is that machine binding changed enough that previously stored rights no longer validate against the current hardware identity. That fact does not independently establish damaged media bytes, a missing decoder, a generally broken network, or invalid rights for every other action.
If the Player, encoder, setup program or device layer later emits a broader error, retain this result as the first specific result. The object and operation attached to it are usually more diagnostic than a later cleanup or user-interface summary.
One-variable comparison
The before/after comparison for this HRESULT has one controlled variable. Before correction, machine binding changed enough that previously stored rights no longer validate against the current hardware identity; after correction, the same workflow can use the issuer’s reauthorization or license-recovery procedure for the changed machine. The result model is suitable for a regression fixture because its expected state change is observable without weakening the DRM policy.
Trace requirements
| Field | Value |
|---|---|
| Direct check | compare hardware-change history and the license-store machine binding without altering either |
| 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 |
| Lower result | the earliest store, network, cryptographic, driver or provider status preceding the final it wrapper |
| Owner | operation, API/callback, object or session identifier, and component/device version associated with it |
Practical diagnostic path
- Preserve it and
0xC00D11D6before 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: machine binding changed enough that previously stored rights no longer validate against the current hardware identity.
- Apply the narrow correction for this HRESULT: use the issuer’s reauthorization or license-recovery procedure for the changed machine.
- Associate it with its current Windows Media Player rights processing object and the requested action.
- Run the direct check for this HRESULT: compare hardware-change history and the license-store machine binding without altering either.
- Repeat the same action with the same content/device identity and verify that it is not replaced by another policy or trust failure.
What another code would mean
| Result | Why it points elsewhere |
|---|---|
NS_E_WMP_DRM_NEEDS_AUTHORIZATION | the Player DRM components require an online authorization or security update before the action can continue |
NS_E_WMP_LICENSE_RESTRICTS | the content license explicitly prohibits the selected Player action |
NS_E_WMP_DRM_INVALID_SIG | a required DRM component or protected object fails signature validation in the Player path |
What success looks like
Repair the owner of the check: use the issuer’s reauthorization or license-recovery procedure for the changed machine. Success means that the same requested action is accepted after that precise state change, not merely that another file or device happens to work.
- While investigating it, keep this restriction: Do not reset the local DRM store before recording the content KID and license-state result; a reset can turn a precise rights or signature failure into a generic missing-license condition.
- Do not alter trusted time, revocation enforcement, certificate validation or output policy merely to suppress it; that bypasses the decision instead of correcting its input.
- Retain one failing artifact and one corrected artifact so the resolution of it can be regression-tested.
Regression check
For the final it test, keep the content KID or file hash, requested action, user/account, device identity and output route unchanged wherever they apply.
Technical references
- Windows Media DRM overview — provides the normative workflow relevant to it.
- Acquiring licenses — lists the security and state transitions used to interpret it.
- Licenses and the local license store — defines the platform objects used when diagnosing it.
- Windows Media Format SDK error codes — documents the protocol or API boundary behind it.
Looking for a different code? Search another status or error code.