Lenovo C40

[Phoenix0519]

-Motherboard Manufacturer and Model : Lenovo C40-05 F0B5000JUS
-Bios Revision : O0KKT15AUS ?
-Bios Type : AMI UEFI ?
-Bios SLIC : Lenovo 2.1
-Bios Link : https://download.lenovo.com/consumer...0KJY15AUSA.exe

I looked on the forum for this and I did not find anything.
This system is a all-in-one made by Lenovo.
I did not see a SLP Marker Utility for this system.
Does this system need to be modded to work?
I'm setting up this system for a friend and I would like to put on an earlier OS.

[Phoenix0519]

-Motherboard Manufacturer and Model : Lenovo C40-05 F0B5000JUS
-Bios Revision : O0KKT15AUS ?
-Bios Type : AMI UEFI ?
-Bios SLIC : Lenovo 2.1
-Bios Link : https://download.lenovo.com/consumer...0KJY15AUSA.exe

I looked on the forum for this and I did not find anything.
This system is a all-in-one made by Lenovo.
I did not see a SLP Marker Utility for this system.
Does this system need to be modded to work?
I'm setting up this system for a friend and I would like to put on an earlier OS.

I made a request over at My Digital Life Forums and someone responded. I attempted what he suggested and will report back the results.

http://forums.mydigitallife.info/threads/5863-Award-amp-AMI-Bios-mod-requests/page6229?p=1203428&viewfull=1#post1203428

I hope this helps someone.