KB4598291 cause Windows 10 activation errors with 0xC004C003 error code
Earlier cumulative updates released by Microsoft caused blue screens of death in Windows 10. Later, Microsoft also released multiple updates to solve this problem.
The reason for the continuous release of fixes is that newly released updates bring new problems and can only continue to send fixes, which shows how poor the quality of Microsoft’s cumulative update is.
However, the cumulative update cause more than just the print driver problem, and many users have found that Windows 10 activation is abnormal after installing the cumulative update. The error code 0xC004C003, that is, the key is invalid, will appear.
Every month, Microsoft releases cumulative updates for the Preview update in addition to the “stable version” cumulative update. The stable version is updated to categories B and the Preview update version is updated to categories C and D.
This time the activation problem is caused by the Preview update version cumulative update, and under normal circumstances, these Preview update version cumulative update will not be installed automatically unless the user checks for the update.
Microsoft’s investigation stated that it was the Preview cumulative update released in January that caused the deactivation. The cumulative update number is KB4598291.
The irony is that this update also includes fixing the activation issues. As a result, solving part of the activation issues has brought new issues that caused OEM Activation 3.0 (OA3) activation users to lose activation.
Microsoft stated that this issue mainly affects users who use OA3 digital product keys to activate the operating system. Users who activate through other methods will not lose activation.
The company claims that “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.”
At present, Microsoft has not provided a temporary solution, so the company recommends that users who encounter this problem uninstall the cumulative update (wusa /uninstall /kb:4598291) to temporarily restore the normal use of the operating system.