Thanks. Nice write up. If I ever try again.

I failed that step 2. It just wouldn't work. I probably typed it wrong.
I still think it should work like RUFUS or Windows 10 bootable.
Bit more user friendly.


But anyways.
I am a builder so I have access to tons of new parts. I could care less about modern parts. (only enjoy Ryzen 2700X and GTX 1080 Ti's because they are money makers lol *Mining*) and of course Gaming on Battlefield 1)
For my own rigs I focus on the most you can squeeze out of it per dollar.

Here are my rigs or under construction if you folks are interested in reading.

Main workstation/ mines 24/7/Daily.
- I7-3770 I won in auction for $90 2 years ago
- Msi LGA 1155 cheap board, No Native Sata 2 (Was my mistake, I nearly got few free at microcenters bundles) (I will change it over to 75 version of board if I keep it)
- GTX 1080 Ti Evga SC @ $2.50-3.12 a day NiceHash with good settings. (when i play a game similar to Diablo 3, I don't even have to turn it off lol) $730 on Ebay (seller gave me the original receipt :D )
- Seasonic Gold 550W I bought 2 years ago around black friday, came out to like $26 after rebate.
- Corsair Case with White Led fans, I think it was like $24 on sale
- Samsung 480/500GB forget model, was like $100 (this build is what got me on the M.2 Train, because my Samsung under performs so bad, like 200-275 read. or w/e, only downside to this build)
- 8Gb Crucial Tactical Tracer I got way back before ram was expensive (probably $38, when i bought in bulk)
- CPU Cooler is unknown because I keep changing it, I pissed off my friend for while using Intel Box cooler, It was great temps back then on those I7s.
Used it for over 2 years and still running 24/7

For the Lawlz
- Ryzen 2700X 4.3Ghz Turbo @ $.85-$1.15 a day, and stays cool with the crazy prism cooler (I got it for like $260 open box bundle at micro, It's already been mining for more than a month, so nearly at $220 out the door)
- on B350 Board
- Misc DDR4 RAM
- System is a test system, I test cards on it and let it run 2-3 cards + the CPU all the time.
- System is very new, I don't have time to move it as a main system or anything like that.
- Random Gold Rated PSU's usually
- Case TBA, It's in a form factor with Risers sticking out of it at the moment.

To Troll People & and to probably daily
- X58 Asrock Extreme I won on Ebay Auction for $78 (works fantastic, I just haven't played with OC's yet, may need to replace thermal paste on the heatsinks)
- I have 3 cpus for it. - Misc I7 just to get it posted, probably was $8-14
- Xeon X5677 $30 - Main probably, and to test Overclocking
- W3565 $7 - to test overclocking (experimental)
- Ram TBA, I want a nice triple channel kit with 4gbs or 8gbs sticks. I care more about highest MHz that won't hurt anything or crash.
- Nice beefy Black RGB Cooler from Enermax, I think it was $40 something, just for fun and I just don't care too much about Liquid Cooling (Another Time)
- Case TBA

Miner 1
- Asrock 250 Intel board, Open box, I made $5 on it lol. It had a $20 rebate and It bundled or it was priced at like $15 or something, was missing I/0 Shield
- Surprisingly it has 4 cards connected to it 24/7 (this was an experiment that went overboard, as I never let it quit and just keep letting it go as it's reliable)
- 120GB M.2 Misc Brand, over 2000 write speed, I think i got it open box as well $32
- Intel G3900 LGA 1151 $27, open box probably
- Here's the funny part, EVGA 1000W G1 GOLD $180, redesigned edition, new when it came out.
- 2x GTX 1080 Ti's and 2x GTX 1070 EVGA's @ $8-$12 a day

Miner 2
- Biostar 12 card BTC board
- 7 cards at the moment
- G3900 Intel
- Thermaltake 850W RGB GOLD $85 on sale after rebate (I think they are $95-135 now)
- 5x GTX 1060 6GB PNY Reference (Business owner I worked for gave them to me, I built him a ton of Miners, he also gave me 3 GTX 1080 Ti's as well)
- 2x GTX 1070 EVGA

Experimental
- Xeon X3470 3.6 Turbo
- Super Micro $20 Motherboards, I have a few - Down side, 2x USB Ports, 1x USB port on the board itself, and no front Audio/Mic Support.
- Testing Server ram, my best score was a $18 - 16GB Server Kit and works flawlessly. 1 stick was dead but I fixed it.
- Can run Battlefield 1 1080P Medium/High settings on full map online based on the video card used. I mainly tested GTX 1060/1080 Ti for shits and giggles.


Thanks again for being an active forum!

@noInk

I am willing to do a How-To video posted to Youtube if you know of free desktop capture software that can capture the steps I take on my desktop to create a working DUET REFIND USB drive. I have never done a capture of my desktop before that I can remember, but I do have a Youtube account that I could post it to and make public. And I have LOTs of time on my hands with nothing better to do. Your call.

EDIT: I will try making a How-To video with something called TinyTake.

That would be legendary.

I think AMD or NVIDIA has it and comes with graphic drivers but I never used it before.

I barely use my Youtube account, but I think it's tied to my Email.
So if you make the Video, and you send it to me. Ill upload it to youtube for you.

The most important thing is.
We will get a thousand questions asking if it works with any M.2/Pci Express NVME Drive (some people with DUET write up say it will work with any of these high speed Drives)

Title should be something like..
Get X58 & Other Old Motherboards to run High Speed M.2/SSD/Pci Express Drives
Video contains instructions on how to use DUET to get most boards to read your Modern High Speed Non SATA drives so you can install WINDOWS 7/10 on it.

That's off top of my head.

@1xstealthx1

There is no SSD or HDD on Planet Earth that DUET and REFIND would not see, not a single one. In order for that to happen the machine would need a physically broken PCIe slot (like I have on one of my boards), or a physically broken BIOS that does not allow the system to see storage devices from PCIe (which is super rare because of the many early PCIe enabled storage device cards that used to be sold). DUET's entire purpose of being is just to see storage devices and boot them. DUET adds the missing bits that a BIOS usually does not have.

I will give TinyTake a try since it's free and said to be simple. I don't want to try OBS studio because I don't plan to make a habit out of this, lol. Haha

You the man!

The main purpose is to have those 300-600 speeds of SSD
and or 1500-2000++ speeds of M.2/Pci Express type
I know Pci Express 2.0 has a cap but who cares lol! (It's fast enough)

Yeah I heard that too, I just wasn't sure.
In video we will state that DUET see's ALL.
After OS is installed it's all up to your board right? (not sure what boards wouldn't work, but we will just say it will work for more X58 boards and newer, and only the ones we've tested)

That "Windows may not be able to boot..." is a warning you may see while attempting to do windows installation on a drive configuration that isn't supported by MB's BIOS and current boot configuration.

To be more precise :
I had this on my Socket 939 board that doesn't support USB booting, when doing Win8 x64 installation on a AHCI M.2 PCI-e drive.
I used Clover on CF card attached to IDE port and Windows installer coudn't see it.
Basicly : Installer "thought" I won't be able to boot Windows so it canceled the installation process and deleted all* copied files (*almost).

To bypass this, you have to hard reset PC BEFORE Windows installer starts "undoing things" because of this error.
Otherwise, you will not be able to go ahead with the installation.
Then make sure you configured EFI software and BIOS boot settings correctly, together with hard drive partition and type (MBR/GPT).

As for my attempt to do M.2 PCI-e Legcy boot :
You CAN bypass this on a 64-bit OS by copying GPT boot partion from a working GPT OS drive ("ghost"/hidden partition), and modyfing it in BCD editor like EasyBCD to better suit your drive configuration.
Of course, you have to have a working Clover or DUET booting "patch" for BIOS, regardless of what you do.
This will NOT work on 32-bit OS.
Example :

I managed to create my first How-To video... At least I think its my first, not sure on that. Please forgive the noobness as I first created a 5 minute long video with TinyTake, and that didnt work so well, so I download OBS Studio anyway and sure enough that went perfect, but I got the settings wrong. It suggested I use 720p output when I have a 1440p screen. So I set it to 1440 output and well I now see why. Everything looks kinda small in the video.

I went ahead and captured "how to create the working bootable USB using DISKPART" first, so the video is now 14 minutes. If you know your usb already works, then just skip a head to wherever I start with the DUET creation. Also my PC isn't copying/pasting into the command prompt for some reason, so I guess that has to do with the recording software running in the background. Sorry.

I hope the video helps someone. Let me know if I need to clarify something. FULL screen it or you may not see what I am doing. LOL

The video is well done @SkOrPn, thanks for it!
I added the YouTube link on the first page :p

Holy crap!
Yeah I gotta check the whole thing out. I am always running around, no time.
Wewt ! now we can help everyone!

@SkOrPn http://camstudio.org/

I like the write up, but i feel the most important part isn't shown. on text or video, I see nothing about creating bootable os or least how to use it.
Like I've created dozens of Bootable Windows 7/10 OS sticks, but using it with DUET = I don't understand any of it.

Mine is almost there but I am missing a crucial piece. I already set everything to AHCI in bios.
When I turn on my machine with DUET plugged in, it shows Asrock Splash screen, and immediately goes with to loading Entering DXT/ DUET/Memory Test. (shows no specs of system when DUET is plugged in, without duet it shows specs)
It sits at memory test screen for like 2-3 mins then it finally shows DUET screen you showed me, but no OS is shown. (My bootable OS is on my other USB stick)
What do I do with the OS, how do I download it so It can be put into? where in the DUET stick? confused by entire step.

I have the Bootable USB on separate usb stick, I don't know if I am wrong but I don't see any information about OS related stuff.
I am confused right after the part where the DUET USB is done.

Like what is next? where do I put the bootable USB/OS installation?
I have both USBs plugged in. 1 with OS and 1 with DUET and the blank m.2 PM951 MZ-FLV2560 Via PCI EXPRESS.
After memory screen now, it seems to freeze at windows 10 logo with other bootable OS usb is plugged in.
It will randomly show the Windows 10 Logo like it's going to start but never goes into windows installer when duet is in the other USB port.
If Duet stick is removed I can go all the way into windows 10 installer but not install os on the drive shown obviously. (on windows installation you will see the 250gb ssd, but cannot continue)

So please tell me at what point you move the Windows OS into the DUET drive?
Yeah I don't see any information about the OS part and where to put it so it shows that screen you have.

Please forgive me I am NOT trying to be rude... BUT!

We didn't show the bootable OS install creation because that is ALWAYS assumed that you already know how to do that part. FYI, this thread isn't about how to make OS install media. This thread is for using OS on NVMe drives on much older systems. There is hundreds of How-To's on making UEFI based Windows OS installer already all over the world. We do not cover that subject here... However, I guess I will make a video for that too. Give me some time please.

Answers to your questions above...
1. After you create the OS installer, you PUT IT IN A USB PORT, LOL...
2. You also put the DUET USB in ANOTHER port obviously.
3. You now turn on the Computer and boot up to DUET from the DUET drive you made earlier.
4. Once DUET boots up and is sitting at its main screen you now click on the Microsoft Windows 10 installer USB disk that you just created earlier (I use Rufus).

Why are we having to show you super common sense stuff? If you are a complete novice at all of this you really should tell us upfront please. We mortal human beings do not posses ESP so I can't possibly know your level of tech knowledge. None of this in this thread is difficult to understand, not one bit of it.

Instructions are simple
1. Make DUET usb.
2. Make Windows usb
3. Install both USB in two USB ports.
4. Turn on machine
5. Select DUET as boot drive, or make it default boot drive.
6. When at DUET screen select Windows installer as shown above.
7. When Windows installer is running, select your NVMe drive to install Windows as per normal.
8. Let Windows finish installing.
9. Enjoy Windows on NVMe on a older system that does not support UEFI or NVMe!
10. PROFIT!

What can possibly be hard about this? I will be back shortly with a video on making OS installer.

P.S. I will try to help in PM also, or maybe with TeamViewer too, just PM me if you need more help.
P.S.S. Maybe I should record the ENTIRE process using my webcam from behind me pointed at my screens? Would that be better?

@SkOrPn

It's a normal OS install, following the WIZARD at the end should do it.


@1xstealthx1

All you need to do is run the OS installer from the REFIND user interface.
There should be a big icon with the window 10 logo, or something on your screen.
The Windows10 USB, for starter, can be made easily with the MEDIA CREATION TOOL.
If you are looking to install other OS, watch out for their instruction.
--
About the DUET memory test screen, no clue. How much memory are we talking? is it any good? :D
Try to load the DEFAULT BIOS configuration from your motherboard because it should supposedly take way less, if not seconds..

OK, this GUIDE is ONLY for people who want to boot an OS from a NVMe SSD on a old Legacy BIOS machine. As the title of this thread states, it is for NVMe support for old Systems. I hope this post helps someone.

This took me all day to figure out and after 3 or 4 failed attempts, deleted videos, and trying different software I finally think I figured it out sorta. I lost a complete business day too doing this :/

First video is below and it shows how to create a Windows 10 USB Installer AND how to get a proper Windows 10 ISO. It also shows me creating the DUET with REFIND USB disk also. About as simple as it gets. It should take no more than 20 minutes tops to get all this sorted and done.

This video was created using OBS Studio and it is a screen recording. (I hate my voice on recordings)

@noInk

Yeah I think I got somewhat a better GUIDE now. I cant invest a lot of time becoming an expert video editor. I mean I could learn it just fine, but not for just this. I am at a loss as to why this is hard for someone. Maybe TeamViewer and a phone call would be better, lol. UNLESS they are expecting a different outcome, or maybe they do not realize what this thread or what DUET and REFIND is for? I am guessing that is the issue. Today I managed to create DUET and Windows 10 and install it all in about 15 minutes flat I think.

You create the USB's, you boot the machine to DUET/REFIND, you install windows and your done. You now can boot Windows from NVMe on very old computer. Where is the user getting lost at???