Details of upgrade paths and permissions for each version of Windows 7

The latest news from it, Microsoft provides a specific document on the Windows 7 upgrade path detailing the upgrade paths and permissions between various versions of Windows 7, let's look at the specifics:

1, not supported: cross-schema coverage installation upgrades (such as x86 to x64), cross-language overlay installation upgrades (such as English to German), cross-version type overlay installation upgrades (for example, fre to CHK);

2, Support: Windows 7 M3 to Windows 7 Beta coverage installation upgrades, beta to RC version coverage installation upgrades, RC to http://www.aliyun.com/zixun/aggregation/33994.html "> The RTM version covers installation upgrades.

Not supported: Windows 7 M3 to Windows 7 RC overlay installation upgrades, Windows M3 to Windows 7 RTM overlay installation upgrades, Windows 7 Beta to RTM version coverage installation upgrades;

3, the specific upgrade path list:

Note：

-X: This upgrade is not supported;

-x86: Support x86 to x86 overlay installation upgrade;

-x64: Support x64 to x64 overlay installation upgrade;

-riu: Support for repair upgrades, this is a case of Microsoft customer service and support, to provide users with a "Windows 7 SKU" to the same "Windows 7 SKU" upgrade services, such as from Windows 7 Ultimate to Windows 7 ultimate;

-riux86: Only support x86 version Riu;

-wau:windows upgrades at any time from a lower Windows 7 SKU to a higher Windows 7 SKU (for example, from Windows 7 Home Basic to Windows 7 ultimate);

reinstates 7 "K" (Korea) version of the upgrade path and other versions of the same;

Versions of-N, E, and KN can only be upgraded between the same version, such as Windows 7 Starter n versions can only be upgraded to other N versions through Wau. (n version does not preinstall Windows Media player,e version does not preinstall Ie,k version does not preinstall Windows Media Player and Windows MESSENGER,KN version does not preinstall Windows Media Player but contains Windows Messenger and provides download links to other IM instant messaging software

Figure 1 Lower version of Windows upgrade Windows 7

Figure 2 Windows 7 upgrade