Windows 7 is one of the operating systems that we have used the most and today there are still thousands of computers with this system or companies that base their management software on it. When we acquire a Windows 7 ISO of a specific version you should know that you can install any version of Windowschanging an ISO image file and we'll tell you how .
The Windows versions have some small differences because each of them is intended for a different audience, for example, the Windows version 7 Professional is intended for businesses as it brings features that a home user would never use .
Thanks to a file called "ei.cfg" we can install any version of our operating system when installing from zero, so in the next article we will show you how to do it .
A single file for all versions of Windows 7
The idea is that when we start the Windows 7 installer all available versions of the operating system appear and we choose the one we want install, we will achieve that by creating and changing a file within the Windows 7 ISO image files .
- The first thing we will have to do is create a new text file and write in the following text without the quotes .
"[Channel]
_Default
[VL]0"
- Now we save the file with the name " ei.cfg", that is, with the extension.cfg (never.txt) .

- Finally using any program to compress or decompress files we will have to copy and paste the file into the ISO image of Windows 7, in the folder " sources ".

Now every time we want to install Windows 7 on a computer we can choose the version we want from the ISO image and thus not have any problem when it comes to having Windows 7 in companies or in domestic places because you can do it in the same way .