* using etcher * getting image from ubuntu page * use USB stick with min 4 GB * start PC and enter boot menu (check for you device how to -> e.g. press escape and then f9 for hp) * select to boot from your USB stick * choose ubuntu * choose install ubuntu (not try) and choose your language * correct keyboard layout * minimal installation * updates on the go * erase and install with advanced features (LVM + encrypt installation: https://jumpcloud.com/blog/how-to-enable-full-disk-encryption-on-an-ubuntu-20-04-desktop)