A Windows 10 Pro product key is a 25-character code used to activate Windows and ensure its authenticity. This key is necessary to activate Windows to verify that the software hasn't been installed on more devices than the Microsoft Software License Terms allow. However, if required, the product key can usually be found in the confirmation email received after purchasing Windows or within the box if Windows came in a physical package. Buy Windows 10 Pro Product Key from SoftwareDeals.
