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Windows 7 ISO Image Edition Switcher is a set of small binary patches that will convert an official Windows 7 ISO disc image into an official Windows 7 ISO disc image of another edition. The resulting ISO images are bit-for-bit identical with those posted on MSDN or TechNet, and their SHA-1 hashes should match the official hashes posted by Microsoft.

With this Windows 7 ISO Image Edition Switcher, TechNet or MSDN subscribers don’t have to waste unnecessary bandwidth to download multiple ISO images for each editions of Windows 7 (Windows 7 Ultimate, Windows 7 Enterprise, Windows 7 Professional, Windows 7 Home Premium, Windows 7 Home Basic and Windows 7 Starter), it can be used to convert any 32-bit image into another 32-bit image and any 64-bit image into another 64-bit image. For example, if you downloaded the 32-bit Ultimate ISO disc image from MSDN and you also want a 32-bit Professional image, instead of spending another 2.3 GB of bandwidth, you can make a copy of your Ultimate image and then patch that into a Professional ISO disc image; the result should be exactly identical to what you would have gotten had you downloaded the ISO image separately.

How Windows 7 ISO Image Edition Switcher works:

The ei.cfg Removal Utility is a small tool to remove ei.cfg from any Windows 7 ISO disc image, thereby converting the image into a “universal disc”, it will prompt you options on which version you want to install during installation. It removes the ei.cfg file without the need for unpacking and rebuilding the ISO. ei.cfg is a Windows Setup configuration file used to determine what edition and license will be used during installation, located at sources folder of the ISO. The content of the ei.cfg file looks like below:

[EditionID]
Ultimate
[Channel]
Retail
[VL]
0

The Windows 7 ISO Image Edition Switcher is a set of small binary patches that allows you to select your desire Windows 7 edition and it will then patch the ei.cfg file from the ones included in the zip to the Windows 7 ISO disc image, thereby converting the ISO disc image  to another edition.

Windows 7 ISO Image Edition Switcher is to help you convert version of Windows 7 easily. If you are a technical person, you may try to edit the ei.cfg file to set which editions of Windows you want it to install by changing the word to “Ultimate”, “Professional” or any other version you would like to install.

Download Windows 7 ISO Image Edition Switcher