I was wrong by stating: "You must boot into Windows 7". Actually, It does not matter which Windows you boot from. To get the graphical dual boot menu:


While in Windows 7, use: bcdboot...

Setting 10 to be default will not do the job, it only shows which Windows is displayed on Boot Menu first, but rather depending on which Windows you run the "bcdboot" command from.
While running...

Look at post #25. That's exactly what I did.:roflmao:

dism /Apply-Image /ImageFile:install.wim /Index:3 /ApplyDir:M:\
bcdboot M:\Windows

As you know in the past, Windows 7 can only be installed with MBR disk type. The Video shows you how to modify the boot process in order to install with GPT disk ie. booting the installation media...

If you've already have all the required drivers injected into install.wim file, you should be able to install Windows 7 in a GPT partition using the dism command in post #2. I've just tried it...

IMO, The easiest way to get this done without using tedious dism command with different options or .cmd scripts.

First, download: Release DISM GUI 4.0 . mikecel79/DISMGUI . GitHub

Since I like...

Running and installing the dirver from Windows 10, it will install in Windows 10. You will need to inject the driver downloaded from Samsung into the install.wim image of Windows 7. Here's the link...

@Megahertz

By using the command above. You actually install Windows 7 manually while running Windows 10, by passing the booting process. After rebooting, Windows 7 will start setting up default...

Been a long time since 2009 I last used Acronis. However, I believe it should allow to clone partition like any other backup software. Most people use : Macrium Reflect free for this.

But.......