

Return the license to the vendor for a refund if it will not activate, and always purchase Windows 10 either from Microsoft directly, or from a known and reputable vendor. If you purchased a product key and it’s not activating via the normal methods, there is a real possibility you were sold an invalid license. Telephone activation should not be needed for Windows 10 anymore. See Microsoft’s Windows 10 Activation page. PLEASE NOTE: The instructions below are out of date and no longer appear to be working.


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