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.

The computer may as well restart on loading the installation program. 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.). It comes with pre-installed development and security tools that are commonly used by developers, security researchers and privacy-concerned people. Installed the 64b version, and chose at first the default options as I suck at partitioning. 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. 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