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SL_REMAPPING_SP_PUB_KM_CACHE_TAMPER
What this Software Protection result isolates
The useful meaning of SL_REMAPPING_SP_PUB_KM_CACHE_TAMPER, value 0xC004D501, 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 kernel-mode licensing cache data fails its integrity check.
For triage, this belongs to the Software Protection integrity and kernel-cache enforcement. Cache integrity failure is distinct from a legitimate policy change requiring reboot. Product-key changes or network tests are useful only when the evidence points back to those layers.
A practical way to isolate the cause
- Record this result,
0xC004D501, the exact API or service operation, and the affected product or protected object. - Prove the specific condition: record cache generation/hash, boot events, policy source, driver state and recent servicing changes.
- Compare the neighboring results below and identify which condition actually applies.
The diagnostic record that matters
- OS build and servicing level
- 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
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 cache generation/hash, boot events, policy source, driver state and recent servicing changes.
Servicing tools can repair protected system files, while unofficial replacements, patchers or permission resets can create a second mismatch and destroy provenance.
Do not confuse it with these nearby results
| Result | Different condition |
|---|---|
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. |
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_TAMPER_MODULE_AUTHENTICATION | Compared with it, a protected module failed authentication against the expected signed system component. |
Recovery while preserving licensing evidence
Repair system integrity and regenerate the cache through normal service/boot processing.
Representative case: A driver or disk corruption changes protected kernel-cache bytes.
Actions that usually destroy useful evidence
- Do not use unofficial activation, patching or proxy tools to bypass the integrity check.
- Do not replace protected binaries from another computer or build.
Technical references
- System File Checker — technical contract for the subsystem producing it.
- Repair-WindowsImage — official platform context used to interpret it.
- Software Licensing provider — supported state, API or recovery information relevant to this HRESULT.
- Windows SDK constants — reference for evidence collection and post-repair verification.
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