Re: https://firmwaresecurity.com/2016/05/21/hackbgrt-changes-windows-boot-logo-on-uefi-systems/
https://github.com/Metabolix/HackBGRT
People are constantly searching for “HackBGRT” is constantly being hit on this blog search site. Here’s a new article on how to use it:
http://www.thewindowsclub.com/change-windows-boot-logo-using-hackbgrt
