I tried to install another distribution (Zorin OS 12.4) to make a 'sample test', but it won't even load the installer. I used Rufus 3.3 to load the ISO on the key, using the two ways (ISO and DD). I run the installation program on an 4Go USB key, from the original ISO found on the official Parrot OS site. It comes with pre-installed development and security tools that are commonly used by developers, security researchers and privacy-concerned people.

The computer may as well restart on loading the installation program. Parrot Security OS is an open source and free GNU/LINUX distribution that is made for developers, security researchers, forensic investigators and privacy-aware people. Starting lines (translation from french may not be right): Installation went well, but when I start, the GRUB screen loads, and whatever option I choose, OS starts booting, and after the first 2 lines (see below), PC restarts. I then tried multiple options (manual, encrypted, not encrypted, etc.). Installed the 64b version, and chose at first the default options as I suck at partitioning. I chose Parrot Security OS, to try the features they offer. I have an old Laptop (Samsung R610, 4Gb RAM, Core 2 Duo, SSD 275GB).

Parrot security os login loop