A resulting access denied error causes the product key not to be extracted correctly. Error 0xC004C003 occurs when a licensing code component tries to access a registry hive without proper access. The company said, “the issue might occur when you try to activate the operating system with an OEM Activation 3.0 (OA3) Digital Product Key (DPK). The workaround of this has recently been shared by Microsoft.
Many a user reported “0xc004c003 activation failures” while downloading the January 2021 monthly “C” release KB4598291 preview update on Windows 10, version 2004, and 20H2 devices.
