[SOLVED] Trouble Installing Windows 7 on Z370 Motherboard

Sarpedon

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Dec 16, 2015
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Apologies in advance for resurrecting this dead horse for further flagellation. Details to follow, but the shortest version of this question first: Is there a way to install Windows 7 on a rig with a Z370 motherboard given the USB driver issue?

Detailed version:

It's been seven years since I built my last PC, so I finally got around to making a replacement from scratch with the following components:

-Intel i5-8600k
-ASRock Z370M-ITX/AC
-G.Skill Ripjaws Series V DDR4-3200 16GB
-Samsung 970 EVO 500GB SSD
-Seagate Barracuda 2TB SATA III HDD
-Asus GeForce 1050Ti 4GB Phoenix
-Seasonic M12II 620 PSU
(I am assuming the case, optical drives, display, peripherals, etc. are not relevant here)

You will immediately notice some issues, probably quicker than I did.

First, Win7 doesn't come with NVMe drivers. I tried the method from Intel for injecting the drivers into the installation ISO, but no luck there (the initial step of copying over the files to the SSD would work, but it couldn't boot to that disk for the rest of the installation process). My next plan was to install the OS onto the HDD (which was intended for storage later), install the NVMe drivers, and then migrate it to the SSD via Samsung's utility; not my favorite option (since I have a habit of giving clean OS install every year to wipe away the detritus that has built up), but it seemed the path of least resistance. Until...

Second, the motherboard doesn't have Win7 drivers. This is particularly an issue for USB, as it becomes difficult to complete installation without a mouse or keyboard (not recognized through USB 2 ports either). I had thought I had seen Win7 drivers available on ASRock's website when I was comparing motherboards back in the spring, but I either misread or they were removed by the time I finally got around to assembling. Now, I suppose I could follow in the vein of my previous solution, and hook up the HDD to an old motherboard (my old build has a Z68), install Win7 and the USB 3.0 and NVMe drivers there, and then pop it into the new build, but I suspect it won't be too happy with that (if anyone has tried something similar successfully, please please chime in). Otherwise, anyone have any suggestions for how to get this installed?

Third, issues that will follow the installation that you might know that I don't know yet. I understand that there is a compatibility issue between Coffee Lake and Windows 7, but I am unclear on how this would manifest itself - windows update issues, security holes, literal meltdowns of my computer? Some of these I could work with (or, at least, I have enough hubris to think I could), some of them not. Any experiences you can provide here are appreciated.

(For those of you who have read this far and are still wondering "Why not just install Windows 10?", I am not going to get into the details, but the answer is a hard "Not an option.")
 
Solution
This is the best thread I've found on how to install Win 7 on Z370 boards. There are some detailed lists of drivers in the posts. Discussion of Asus and ASrock boards.

https://www.overclock.net/forum/6-intel-motherboards/1642446-how-install-windows-7-coffee-lake-pc-z370-chipset-mb-asus-maximus-x-hero.html

The USB issue is a separate issue that existed with Z170 boards as well. In the UEFI setup there is a setting for PS2 emulation on USB ports. Try enabling that. Asrock had (probably still does) a page on how to install Windows 7 on Z170 boards so look that up to get around the USB on Win7 issue. They won't have such a page for Z370 because Win7 is officially unsupported.

You probably did see drivers at first. The...
the Fred Flintstone method i used to get my NVMe SSD (Samsung xp941 then my samsung 950 and last a 960) to work as my OS boot drive, was to install Win 7 to a Sata SSD first as my boot drive, then with the NVMe drive installed (mine went into a PCIe expansion card) i installed samsung's NVMe driver https://www.samsung.com/us/support/owners/product/970-evo-nvme-m2

Then i cloned the Sata SSD over to the samsung NVMe drive from the Sata SSD

but, i think you trying to swim upstream - the Z370 will not support Win 7 - there are folks that have done it but you have to hunt down a lot of drivers and not certain you'll get it all worked out - Intel and microsoft worked together to limit the new chipsets to only support Win 10

 

trag19

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Aug 14, 2016
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This is the best thread I've found on how to install Win 7 on Z370 boards. There are some detailed lists of drivers in the posts. Discussion of Asus and ASrock boards.

https://www.overclock.net/forum/6-intel-motherboards/1642446-how-install-windows-7-coffee-lake-pc-z370-chipset-mb-asus-maximus-x-hero.html

The USB issue is a separate issue that existed with Z170 boards as well. In the UEFI setup there is a setting for PS2 emulation on USB ports. Try enabling that. Asrock had (probably still does) a page on how to install Windows 7 on Z170 boards so look that up to get around the USB on Win7 issue. They won't have such a page for Z370 because Win7 is officially unsupported.

You probably did see drivers at first. The motherboard companies released them and then pulled them. Some kind of arm twisting from Intel and/or Microsoft.

The primary incompatibilities you will see are:

1) built in/integrated video will not work. You will need a discreet video card. Not an issue for most folks.
2) Win7 updates won't operate. There is a utility to hack that back into shape:

https://github.com/zeffy/wufuc/

And a fairly informative Reddit discussion:

https://www.reddit.com/r/intel/comments/7e0wzi/windows_7_drivers_missing_for_asrock_z370_intel/
 
Solution