Can Windows 7 Professional Upgrade to Ultimate?
Contents If You Already Have an Edition of Windows 7 on Your Computer (Except Enterprise), You Can Perform a Windows Anytime Upgrade to Windows 7 Ultimate...
If you already have an edition of Windows 7 on your computer (except Enterprise), you can perform a Windows Anytime Upgrade to Windows 7 Ultimate: While connected to the Internet, from the Start menu, run a search for “Anytime Upgrade” and open the search utility’s result.
Can I use Windows 7 Pro key for ultimate?
5 Answers. You cannot downgrade to Windows 7 Pro without doing a complete re-installation, and you cannot use a Windows 7 Pro activation key to activate Windows 7 Ultimate. However, you should be able to use the activation key from an OEM copy of Windows Ultimate that you purchase.
Must Read
Can I upgrade from Windows 7 Home Premium to Windows 7 Ultimate?
Click Start, type Anytime Upgrade, click the option to purchase a key. Wait while the Anytime Upgrade page is loaded, click the Windows 7 Professional/Ultimate Upgrade to buy it.