This issue might occur when you try to activate the operating system with an OEM Activation 3.0 (OA3) Digital Product Key (DPK).
Error 0xC004C003 occurs when a licensing code component tries to access a registry hive without proper access. The resulting access denied error causes the product key not to be extracted correctly.
To resolve this issue, apply update KB5000842 or a later update.
Windows Activation fails with error 0xc004c003 on devices that have installed the Windows 10 January 2021 nonsecurity preview release or a later version
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