Windows 7 ISO Disc Image Version Switcher

The windows 7 phase from coming out of beta to the final release, there were many changes in the ISO. This did cause a lot of people (tech related basically) a bit of trouble since the resulting ISO images were bit-for-bit identical with those posted on MSDN or TechNet, and their SHA-1 hashes should match the official hashes posted by Microsoft. Here’s an free, portable app which lets you easily convert any Windows 7 ISO to the version you need.

According to the site

The ei.cfg Removal Utility is a simple tool that will remove the ei.cfg from any Windows 7 ISO disc image, thereby converting the image into a “universal disc” that will prompt the user to select an edition during setup. This tool works by toggling the deletion bit in the UDF file table, eliminating the need for unpacking and rebuilding the ISO, which means that this is extremely fast (the process of patching the ISO to remove ei.cfg takes only a fraction of a second), and the process is easily reversible (running the utility on a disc image patched by this utility will restore the disc image to its original state).

Windows 7 ISO Edition Switcher (Download)

Via Download Squad