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SL_E_CHPA_INVALID_PRODUCT_KEY_CHAR
SL_E_CHPA_INVALID_PRODUCT_KEY_CHAR (0xc004c010) is a Windows Software Licensing activation-service code. The product key includes a character that the activation service does not accept. This normally reflects an entry or source error, such as confusing similar-looking characters.
What to check
- Recheck the original key record carefully; do not guess replacements for ambiguous characters.
- Confirm that the product key is intended for Windows and the installed edition.
- If a business portal supplied the key, ask the administrator to verify it rather than modifying it locally.
Microsoft: help with activation errors
Microsoft: Volume Activation Management Tool overview
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