Upgrading Windows 7 Versions Using Anytime Upgrade
Windows 7 made it very easy to upgrade from different versions.
Using the Windows anytime upgrade, you can upgrade from Windows 7 Home Premium to > Windows 7 Pro, or Windows 7 Ultimate.
Follow these steps to get started.
Step 1: First go to your Control Panel, then double click on Windows Anytime Upgrade:
Step 2: Next, enter a valid license code for the version of Windows you're trying to upgrade to.
Step 3: Once a valid license code is entered, Windows will begin to upgrade your machine.