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| SL_E_CHPA_RESPONSE_NOT_AVAILABLE | SL_E_CHPA_PRODUCT_KEY_BLOCKED_IPLOCATION |
SL_E_CHPA_OEM_SLP_COA0
SL_E_CHPA_OEM_SLP_COA0 (0xc004c016) is a Windows Software Licensing activation-service code. The activation service reports that this OEM SLP key cannot be activated online. OEM licensing is tied to the manufacturer’s supported activation and recovery path, so do not substitute keys from unrelated devices.
What to check
- Confirm the Windows edition originally supplied with the device.
- Use the OEM recovery or support process if the device was restored or reinstalled.
- If a separate retail key was purchased, use only that key through the normal Activation page.
Microsoft: help with activation errors
Microsoft: Slmgr.vbs activation options
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