How to install Windows 7 on Skylake Dell XPS 8910

Just found this article listing that Dell makes Windows 7 images with USB 3.0 and NVME drivers. Windows 7 recovery image download available with USB 3.1 and NVMe driver support | Dell US

Problem is my desktop an XPS 8910 is not listed. The computer came with Windows 10 Pro, meaning that through dell it has downgrade rights to windows 7 (Reg Win 10 users on the 8910 do not have this right.). Tried checking my drivers page and clicked change OS, there is a listing for Windows 8.1 64 bits. Problem is there is no Operating system category present with recovery media for either Windows 10 or Windows 8, ugh.

Would this work?
Looked over the list of computers and found a service tag for a Vostro 3900, oddly this computer has all the factory recovery images posted in the operating system category. Am now downloading what appears to be Win 7 Pro SP1 iso.
Questions:
From the link posted at the start of this post, would it be correct to assume that this Win 7 image has the USB 3.0 drivers on it and NVME for 6th generation skylake processors which I guess I have since its a 6700k?
Is Win 7 pro upgradeable to Win7 ultimate OEM disk from dell I have should this work?
Does anyone have a link to a similar dell article with Win7 ultimate instead?

***Does this mean Dell just has these Win 7 images sitting around somewhere prepatched with USB 3.1 and NVME I could just use or any dell user?


Possibly useful info from the dell driver page for XPS 8910
"ASMedia USB 3.1 eXtensible Host Controller Driver" it says "Version 1.16.33.1, A01"

1. "Second Image indicates there is still some unknown USB controller listed".

Run pnputil all. It is under the start menu\program files. It will take a minute. Then check which drvers are loaded.


2. Yes, Dell have recovery media with updates and drivers included. Not sure if all their skylake pc's use the same recovery media.

However, those updates and drivers are only in the one Edition ( e.g. Pro). The ultimate image on the media doesn't have those included.

It is possible to use dism7 ( on the 17514 desktop) to change the Pro Edition to Ultimate, but you would also need to use the winre.wim and boot.wim from the Dell media.

The other way is to add the required updates and drivers to an Ultimate image, before installing. ( Boot.wim and install.wim also need to have the updates and drivers and are the same for all editions. )

It seems they have used the newer image based setup media.

These newer Win7 images dell is using may have the updates wrapped into the wim files for installation maybe? Would need to test that which I can do later. You mentioned being able to upgrade pro to ultimate, Ultimate is the only OS ever purchased from Dell which is included as far as I know from downgrade rights for dell win 10 pro users. once pro is installed would ultimate from an OEM dell disc just be an upgrade so it wouldnt remove the drivers from pro right?

*Dell Win7 images indicate they are made for use with 6th generation skylake processors.
*Would an I7-6700k be a sixth generation skylake processor?
According to intel the I7-6700k processor in the dell XPS 8910 is sixth generation: 6th Generation Intel(R) Core™ i7-6700K and i5-6600K Processors

**EDIT: Attempting Dell Win7 image modified with 3.0 for installation from USB without use of 17514 to determine functionality of mouse and keyboard during installation. All previous steps are repeatable to arrive at last working point in discussion.

See how you get on with that.
FYI win7 images can be changed to a higher edition.

Dism7v3-x86-x64.zip

Browse to the wim.

Select a folder.

Type the number of the image you want to mount. IMG: ( Whichever is Professional - probably image 3).

Click MOUNT. ( Takes a minute to mount )

Type Ultimate, then click SET EDITION. A command window will show you the progress (may take 30 secs or so. )

Then click UNMOUNT-COM. ( Note, the name field doesn't change until you install, as the changes are pending).

If you are going to use Dell skylake recovery media, suggest you rename sources\ei.cfg to ei.cfg.bak.

It should then give the option which image to install. It will be the third one down - probably still called Pro. (changes are pending ) After install is complete it will be Ultimate.

The product key and xml file in the Dell skylake media will be for Pro, so you will need an Ultimate key to activate later.