The amount of time the upgrade takes will vary between systems. Enter your product key for the edition you are upgrading to, whether it is Pro or Enterprise and wait while the product key verified.ĩ. Make sure all open applications are closed and your work is saved then start the upgrade. Wait while the upgrade process kicks off your computer will be restarted several times throughout this process.ġ0. Click Yes if User Account Control comes up.Ĩ. Select About then Change product key or upgrade your edition of Windows.ħ. Once you have your Windows 10 key ready select System.Ħ. Upgrade to Windows 10 Pro using the following default product key:ĥ.