To upgrade Windows 11 Home to Windows 11 Pro without reinstalling, you must first disconnect your computer or laptop from the Internet for a short time. Then go to -> Start -> Settings -> System -> Activation and enter this generic licence key for the upgrade: VK7JG-NPHTM-C97JM-9MPGT-3V66T
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Then PLEASE CLICK HERE and purchase a suitable licence key (OEM) for EUR 29.90 for permanent use of the Pro version. Before activating the product, you must restore Internet access.