Hi there,
Did you make any hardware change ?
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. A resulting access denied error causes the product key not to be extracted correctly.
KB5001692: Windows Activation fails with error 0xc004c003 on devices which have installed the Windows 10 January 2021 nonsecurity preview release or a later version
https://www.dell.com/support/kbdoc/en-ie/000194108/windows-activation-fails-with-error-0xc004c003-on-computers-which-have-installed-a-non-security-preview-release-of-the-windows-10-20h1-or-later
I hope this information helps. If you have any questions please let me know and I will be glad to help you out.
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