is possible to clean install Windows 7 onto Envy 15-ep0 family?

[Leg_Locker]

This laptop came with Windows 10 Home 64-bit preinstalled. Is it possible to do a fresh install of Windows 7 64-bit?
 
In the BIOS underneath Boot Options I enabled USB Boot and disabled Secure Boot. Then I set the boot order to USB drives first, USB CD/DVD drives second, and OS Boot manager third. I have a Windows 7 installation on USB (FAT32), but it won't even initialize the installation. I tried selecting the USB drive using F9, but again the installation won’t initialize. Same thing happens when using a Windows 7 installation disk and USB disk drive.
 
I noticed in the Main tab of the BIOS the line "Factory Installed OS" is already listed as Win10 even when the factory NVMe with Windows 10 was removed. Afterwards, I was able to install Linux Mint onto a brand new NVMe by using a USB drive. The Linux installation ran fine, but even then the BIOS still showed Win10 as the factory installed OS. I'm wondering if the hardware will only allow Windows 10 or if I'm missing something that prevents me from installing 7.
 
Any help to get Window 7 installed would be greatly appreciated.

[banhien]

@Leg_Locker 

HP Envy 15-ep0xxx machines use Intel Gen 10 CPU's. Vendors won't write drivers for Windows 7 from Intel Gen 8 processors. You won't be able to find Windows 10 drivers and your machine would be a paper weight.

Regards.