I have CDs for both XP Pro (which is running fine) and Win 7 Home Premium UPGRADE. Win 7 has run on my MBA 13" 2012 in the past but I don't recall how Win XP is currently on my system! I seem to recall having enormous problems with the Win 7 install which may account for the Win XP 'downgrade' Where/how do I get the correct Installation Key for the Win 7? Apologies for my ineptitude...
Hi JIMJFOX, If the issue which you are facing is regarding the Windows 7 product key, please contact Microsoft Support, so they can help you with that. You still have issues installing Windows 7 OS in Parallels Desktop, please provide us the screenshot where exactly you are stuck.
