I recommend first to use a Virtual Box machine with EFI support enabled to test everything before doing it on a real machine.
OBJECTIVE: Install Arch Linux with encrypted boot, root and swap filesystems and boot from UEFI, completly dumping Windows on the process. No dual boot. Windows, if necessary will be run on a Virtual Machine and re-use the Windows key that came with the laptop.
The configuration will be LVM on LUKS. Also a major difference from other tutorials is that the boot partition is also encrypted, and not a standard partition.