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In this video, I show you how to merge 2 ISO files to install Windows 10 and Windows 11
First of all, you download two ISO files of Windows 11 and Windows 10 from Microsoft's homepage
Next, copy the install.esd file from the Windows 10 ISO file
and the install.wim file from the Windows 11 ISO file
You can get the install.esd and install.wim files by extracting the ISO files with Winrar
or 7-zip
In this video, I use another way that is to mount the ISO file, this way is available on Windows operating system
You will find the install.esd and install.wim files in the source directory of the Windows installer
Next, open a command prompt with administrative privileges
You will use two commands throughout this video, the commands will be found in the description of the video
The first command will tell you about the install.esd file and the install.wim file
You replace the path to your files before executing the command
As you can see the Windows 10 installer has 7 versions
You replace the path to your files before executing the command
There are 11 versions in the Windows 11 installer
You need to pay attention to the index of Windows 10 installed versions, because the second command will need it
Let's move on to the main part of this video,
which is adding Windows 10 installation versions to the Windows 11 installer
We add versions of Windows 10 to the Windows 11 installer one by one
The first is the Windows 10 Home version with an index of 1
So you correct the source path, index is 1 and the destination file path and execute the command
Specifically, you will add the Windows 10 Home installer to the install.wim file
You replace the path to your files before executing the command
After the command is completed
Check the install.wim file information
As you can see, a 12th index has appeared and that is the Windows 10 Home installer
The install.wim file size has increased significantly more than 8 GB
So how do you want to add other Windows 10 installation versions to the install.wim file?
You just change the index to add other versions of Windows 10 you want
In this video I will add all versions of Windows 10 to the install.wim
So I will repeat the statements with indices varying from 1 to 7
After Windows 10 Home I add other versions with index from 2 to 7
Now we check the information of the install.wim file after editing
As you can see now there are all 18 versions of Windows installation
Windows 10 installed versions are indexed from 12 to 18
The size of the install.wim file is about more than 8GB
But how do you create the Windows ISO file with this install.wim file
I recommend you to use AnyBurn software which is a free utility
To create an ISO file that can be installed on a computer with hardware that does not support Windows 11,
it is recommended to use the ISO file of the Windows 10 operating system
You remove the existing install.esd file and replace it with the install.wim file you just created
You create a new ISO file with the name you want
You wait about 1 minute to get the final ISO file
Your new ISO file will be more than 9GB in size so you will need a USB stick of at least 16GB in size for the Windows installer
To test the results I will create a virtual machine with the VirtualBox hypervisor and use the newly created ISO file
You now have an ISO file with both Windows 11 and Windows 10
You use it to create a bootable installation USB stick with software like Rufus
The installation steps are as normal as the original ISO files downloaded from the Microsoft homepage
But here is the result we expected, a list of 18 versions of Windows 11 and Windows 10 for you to choose from
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