KDE neon can be installed in a multi/dual boot environment. After installation of the OS you have to install further important apps to make it a productive system. E.g. a word or image processing program, a mail client or a calculator. KDE neon is a system with a small user basis.
This is an instruction for the installation, encryption, and the bootloader setup of two Linux systems, exemplary Linux Mint 17 KDE as the main system and LMDE (Linux Mint Debian Edition) as a secondary system.