Windows 7 Upgrade Paths

If you are upgrading your current version of Microsoft Windows to Windows 7 then make sure that you are not using the following versions of Microsoft Windows as they may not be upgraded to Windows 7.

• Windows 95, Windows 98, Windows Millennium, Windows XP, Windows Vista RTM, Windows 7 Starter, Windows 7 M3, Windows 7 Beta, Windows 7 RC or Windows 7 IDS.
• Windows NT Server 4.0, Windows 2000 Server, Windows Server 2003, Windows Server 2008, or Windows Server 2008 R2.

The following are the supported upgrade paths:You may also view more information regarding the Cross-architecture in-place upgrades , Cross-language in-place upgrades , Cross-SKU upgrades , Cross-build type in-place upgrades, and more. To view this information, download the Microsoft Word document from the Microsoft Download Center. The download is titled as Windows 7 Upgrade Paths.
You may also click on the following link to go to the Microsoft Download Center to download the Windows 7 Upgrade Paths Word document.
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=e170eba1-5bab-401f-bbf5-00f0ee7fe0fb#tm