Under Upgrade your edition of Windows, select Open Store If you don't have a Windows 11 Pro product key Select Next to start the upgrade to Windows 11 Pro. Select Change product key, and then enter the 25-character Windows 11 Pro product key. Select Start > Settings > System > Activation. Then, follow the steps that apply to your product key scenario. For more info, see Find your Windows product key. For more info, see Activate Windows.įirst, check if you have a Windows Pro product key. If you’re not activated, we recommend you activate Windows 11 Home first. Important: The following steps apply only to devices currently running an activated copy of Windows 11 Home.