The simplest way to install LEAFOS is to start the target PCs/Laptops using a bootable USB stick that runs LEAF OS with the following 2 options:
Installation option #1 (live boot LEAF OS using USB flash memory stick)
Your device will boot LEAF OS from the connected USB flash drive. There will be no changes to the PC/laptop’s internal drive.
Installation option #2 (flash LEAF OS into device's internal drive to boot from)
The contents of your device’s internal drive will be wiped and flashed with LEAF OS. When you boot the device, LEAF OS will be directly booted from the internal drive.