
In the new window, select "Activation" and click the "Activate" button.Īlternatively, force-activate Windows 10: To do this, open the start menu and select the "Update and Security" section. According to user experience, it is worth waiting a couple of hours and trying again to activate Windows 10.

Let's deal with this activation 0xc004c003 error codeĪ large stream of users is simultaneously trying to update Windows 7 and 8.1 to Windows 10, as a result of which the activation servers can be overloaded. Now let's take a closer look at solving the error code 0xc004c003 problem. If error 0xc004c003 appears after you change your hardware, then the best solution is to contact Microsoft. Outdated or incorrectly updated Windows 10.


Activation servers are busy, thus you need to wait a bit.If, after all, you are sure of the authenticity of the copy, then contact Microsoft. Most likely, you don't have a genuine copy of Windows. When trying to activate Windows, many users reported an error code 0xc004c003, as a result of which access to the system was blocked.
