Can't boot from USB using a Dell latitude 5580

Hi fellow users of the internet,

After an Success ful Hackintosh install on my Razer Blade 2020 model my dad wanted an Hackintosh as well. He already is an mac user, but his work provided an windows laptop. (Since his company runs on windows). but he wanted to have his laptop dual boot windows and mac.

I used my usb stick that I used for my own Hackintosh install, edited the config.plist file towards his laptop (kaby lake), edited the bios as much as I could to be on the recommended settings for loading macOS and when I boot from the usb the screen turn black for 4-5seconds and then boots into Windows.

Could somebody help or at least provide some more information on this issue I have.

Laptop specs:

CPU: I5-7300U

GPU: iGPU

Ram: 8GB

SSD/HDD: nvme 128gb /WD 160gb (external for macOS)

Version of macos on my usb: MacOS 11.5.1 Big Sur

Thank you in advance!

Author: @Jealous_Wind_387