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SL_E_SRV_INVALID_SECURITY_PROCESSOR_LICENSE
SL_E_SRV_INVALID_SECURITY_PROCESSOR_LICENSE (0xc004b009) is a Windows Software Licensing activation-service code. This error concerns license data that depends on a security processor or related hardware-backed licensing state. Avoid clearing TPM, changing firmware keys, or deleting licensing files solely because of this code.
What to check
- Confirm the Windows edition and current activation status first.
- Check whether the issue started after a firmware, motherboard, TPM, or major hardware change.
- For enterprise-managed activation, provide the code and hardware-change history to the licensing administrator.
Microsoft: help with activation errors
Microsoft: Slmgr.vbs activation options
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