The basic issue here may be that you are running a processor that is not supported for use on Windows 7 - Intel decided to not support Windows 7 on some later CPU versions - Some users with certain hardware have succeeded with the installation but it is very hit and miss, Some motherboards can be made to work but a lot cannot
A note on Coffee Lake/H310 and Windows 7 : intel
Hi Techbox,
It might be worth taking a look here => Windows 7 Image Updater - SkyLake\KabyLake\CoffeLake\Ryzen Threadripper.
I hope this helps!
Also I found this - How to add USB 3.0 Drivers to Bootable USB windows 7 | To fixed windows installation error - YouTube but I have not found the correct extractable intel chipset driver
Back to the drawing board....although, I did manage to make a nicely modded 7 disk it still totally fails at the installation screen. Complete loss of KB and mouse = (
CoffeeLake CPU and chipsets aren't compatible with Win 7 as the previous SkyLake and CabyLake.
On a CoffeeLake you don't have Win7 drivers for internal graphics and USB, so you wont have mouse & keyboard. You have to install a graphics and USB cards.
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