HOW TO INSTALL DUAL BOOT 10/7 SYSTEM ON NVMe DRIVE WITH 10 FIRST?

hello everyone :) as much as things have changed in the past 10 years my love of puters hasnt...
since my BIG system has been packed away im doing jobs for other people & here's my first big challenge.

they have an NVMe SSD drive with windows 10 version 2004 on it already... ive partitioned the drive to get it ready for a windows 7 install for a dual boot...the problem is after the 7 installer loads the temp files, the mouse & keyboard stop working at the SET UP NEXT window...ive contacted samsung to find out there was a driver problem with windows 7 & NVMe drives which ive already installed what i thought was the hot fix for ...but now it still happens so ive found a few more options but im not sure which option i should go with since it can very quickly turn into a bottomless pit LOL..

CAN ANYONE PLEASE TELL ME THE FASTEST & EASIEST OPTION I HAVE?
im trying to avoid installing on other drives & cloning partitions...BLA BLA BLA since acronis can only clone entire drives ^ NOT separate partitions...if i can install onto a regular HD & then update that version of 7 to work on an SSD drive maybe i can find a program that can clone partitions?

thanks for any help

I really like this method:

Hyper-V - Native Boot VHD

Using this method, you install Windows to a Virtual Hard Disk and then native boot it. The ability to natively boot a VHD is a fantastic capability of Windows and also will keep that copy of Windows nicely isolated from your main installation.

In fact, I like this capability so much that I wrote myself a program to deploy Windows to a VHD and add it to my boot menu automatically

Win 7 installation files don't have new drivers required to install on new hardware.
You have to add those new drivers (USB3.x, SATA, MVMe) to the win 7 installation drive.
Open a thread on Installation & Setup - Windows 7 Help Forums and we will help you to install win 7 on your computer.

Post #2 is exactly what I would do.

topgundcp & NavyLCDR, I don't think it will work.

Win 7 doesn't have the MVMe drivers needed to boot and begin installation.
Dino, isn't index 1 for Home Basic?

Dino, the command will extract the index n image, but installation begins after the first boot
My experience in installing Win 7 on new hardware says it wont even boot.
Win 7 64 index (32 has a Starter)
1- HB
2- HP
3- Pro
4- Ultimate

topgundcp said:

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.... Here's what I would do to install Windows 7 on the partition that you've already reserved on the SSD.

1. From Windows 10, copy the install.wim under sources folder of the Windows 7 disk to Windows 10 desktop
2. Open Admin command prompt then navigate to desktop: cd %USERPROFILE%\desktop
3. Type: dism /Apply-Image /ImageFile:install.wim /Index:1 /ApplyDir:X:\
   NOTE: replace X with the drive letter of the partition you intend to install Windows 7
4. then type: bcdboot X:\Windows
5. Reboot the PC, you should have a menu for dual boot, select Windows 7

HELLO EVERYONE & thanks very much for all your kind replies to my post..

id like to give an update for the situation so far as ive spent many hours on this & its still not solved but maybe im getting closer...

after i tried to follow these steps after painstakingly trying to update the bootable 7 files with the NVMe & USB drivers, when i rebooted into win 7 the colored lights swirled around while it was loading the OS but then it just again rebooted....i then rebooted back into win 10 to check things & saw the install filled up the drive with 17 GB of data in the typical directories but when i went into \Windows\System32\drivers i couldnt find the NMVe drivers i thought were supposed to be there...

another option i tried was running the SETUP exec from the usb flash drive i made...at frirst it froze during the install screen so i downloaded & installed these samsung drivers i got from their website by running it from inside win 10...even tho i figured it wouldnt help much, the next time i tried to run the setup exec from the flash drive, it actually allowed me to choose the correct partition & start the install...BUT after it had copied all the files it started to expand them & about 6% into the second stage i got another error that said windows couldnt install "a driver" never saying exactly which one, i was again set back....it seems to be very difficult to do this when it should have been so easy...
CAN ANYONE HELP?
should i open another thread like megahertz said?