BEFORE YOU CAN DO ANYTHING you’ll want to start the ISO downloading for the Arch Linux install image. Head to www. archlinux.org/download and grab one of the torrents, or else scroll down to one of the localized mirrors.
Best practice is to run an integrity check on the download file—this ensures that it’s downloaded correctly but also that no one has interfered with the stored file. Technically the ISO file and checksum hash should be stored on different systems, so it’s harder to compromise both.