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SL_E_CHPA_RESPONSE_NOT_AVAILABLE
SL_E_CHPA_RESPONSE_NOT_AVAILABLE (0xc004c015) is a Windows Software Licensing activation-service code. The activation workflow did not receive the expected response from the service. It can be temporary, but first verify that the device clock, network path, edition, and activation method are correct.
What to check
- Check the activation state and preserve the exact error code.
- Retry later only after confirming connectivity and time synchronization.
- For an organization device, ask the administrator whether the managed activation service is available.
Microsoft: help with activation errors
Microsoft: troubleshoot KMS activation
Microsoft: Slmgr.vbs activation options
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