Windows 11
A Microsoft operating system designed for productivity, creativity, and ease of use.
10,652 questions
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I get the error message 0xC004C003 when I try to activate and troubleshoot.
Try update your Windows and restart your PC.
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You may try contact the Microsoft Support in your country:
https://support.microsoft.com/en-us/topic/global-customer-service-phone-numbers-c0389ade-5640-e588-8b0e-28de8afeb3f2