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SL_REMAPPING_SP_PUB_TAMPER_MODULE_AUTHENTICATION
What the protected licensing code means
The useful meaning of SL_REMAPPING_SP_PUB_TAMPER_MODULE_AUTHENTICATION, value 0xC004D401, is not simply “activation failed.” It comes from Software Protection integrity and kernel-cache enforcement, where the integrity path that authenticates protected modules, compares security-processor state with kernel-mode policy data, restores cached state and detects proxy or patch interference. The condition to investigate is a protected module failed authentication against the expected signed system component.
This result already rules out several broad guesses: this is file/module authenticity, not a product-key or network error. Preserve its operation name, product instance and timestamp so a later retry does not hide the original failure.
A reproducible troubleshooting path
- Identify the caller and operation instance that produced
0xC004D401. - Collect the code-specific evidence: record module path, version, signer, hash, catalog result and OS build.
Where it sits in the licensing pipeline
A module or cache integrity result should be investigated as a component-integrity problem before changing product keys or activation endpoints. To verify this, record module path, version, signer, hash, catalog result and OS build.
Servicing tools can repair protected system files, while unofficial replacements, patchers or permission resets can create a second mismatch and destroy provenance.
State to compare on both sides of the failure
- kernel-cache policy generation and reboot state
- SFC/DISM results and Security-SPP event correlation
- exact module/file and version
- digital signature and file hash
- OS build and servicing level
What to repair—and what not to reset
Repair the Windows component store and protected files with DISM/SFC, then investigate unauthorized replacement.
Representative case: A third-party optimizer replaces or patches a licensing-related system DLL.
Do not confuse it with these nearby results
| Result | Different condition |
|---|---|
SL_REMAPPING_SP_PUB_TAMPER_SECURITY_PROCESSOR_PATCHED | Compared with this result, the security-processor implementation appears patched or inconsistent with the signed platform image. |
SL_REMAPPING_SP_PUB_KM_CACHE_TAMPER | Compared with this result, kernel-mode licensing cache data fails its integrity check. |
SL_REMAPPING_SP_PUB_KM_CACHE_TAMPER_RESTORE_FAILED | Compared with this result, the platform detected a damaged kernel-mode cache and its automatic restoration attempt also failed. |
Actions that usually destroy useful evidence
- Do not replace protected binaries from another computer or build.
- Do not use unofficial activation, patching or proxy tools to bypass the integrity check.
Technical references
- System File Checker — official platform context used to interpret it.
- Repair-WindowsImage — supported state, API or recovery information relevant to this HRESULT.
- Software Licensing provider — reference for evidence collection and post-repair verification.
- Windows SDK constants — technical contract for the subsystem producing it.
Looking for a different code? Search another status or error code.