If you can figure this out:
Upgrading from Windows 7 to Windows 7
For Windows 7 Milestones, Microsoft has revealed that:
- Windows 7 M3 to Windows 7 Beta in-place upgrade is supported;
- Windows 7 M3 to Windows 7 RC in-place upgrade is NOT supported;
- Windows 7 M3 to Windows 7 RTM in-place upgrade is NOT supported;
- Windows 7 Beta to Windows 7 RC in-place upgrade is supported;
- Windows 7 Beta to Windows 7 RTM in-place upgrade is NOT supported;
- Windows 7 RC to Windows 7 RTM in-place upgrade is supported.
At the same time, the company notes that, “Beta to RC paths are not supported.” and that, “RC to RTM paths are not supported.” For the jump between Windows 7 RTM editions, Microsoft has defined three paths: “RIU = Repair in-place upgrade is supported. This is a Microsoft Customer Service and Support scenario where the user performs a ‘Windows 7 SKU’ to ‘Windows 7 same SKU’ in-place upgrade as a means of repair (for example, upgrading Windows 7 Ultimate to Windows 7 Ultimate. RIUx86 = Repair in-place upgrade is supported for x86 only. WAU = Windows Anytime Upgrade is supported. WAU uses the Transmogrifier platform to transform a lower Windows 7 SKU to a higher Windows 7 SKU (for example, Windows 7 Home Basic to Windows 7 Ultimate.)”
Windows 7 to Windows 7 upgrades:
- Windows 7 Starter RIUx86 upgrades Windows 7 Starter, and WAU upgrades to Windows 7 Home Premium, Professional, and Ultimate;
- Windows 7 Home Basic RIU upgrades to Windows 7 Home Basic, and WAU upgrades to Windows 7 Home Premium, Professional and Ultimate;
- Windows 7 Home Premium RIU upgrades to Windows 7 Home Premium, and WAU upgrades to Windows 7 Professional and Ultimate;
- Windows 7 Professional RIU upgrades to Windows 7 Professional, and WAU upgrades to Windows 7 Ultimate;
- Windows 7 Enterprise RIU upgrades to Windows 7 Enterprise;
- Windows 7 Ultimate RIU upgrades to Windows 7 Ultimate.