*This page is intended for users that would like to install Phyllome OS permanently on a computer. Make sure you understand what [Phyllome OS](/phyllomeos/purpose.md) is about before installing it*
Installing Phyllome OS involves booting from a [bootable USB flash drive](/deploy/medium) and fetching an online kickstart file, which contains instructions to automatically deploy Phyllome OS.
> The process to install Phyllome OS is destructive. Only follow the following instructions on a computer whose data has been backed-up and which has only one storage device attached to it.
| *Intel CPU* | **Phyllome OS Desktop I** | **Phyllome OS Desktop II** |
| *AMD CPU* | **Phyllome OS Desktop A** | N/A |
| CPU-agnostic | **Phyllome OS Desktop** | N/A |
[^2]: Only [Broadwell-based SoC](https://en.wikipedia.org/wiki/Broadwell_(microarchitecture)) (5th generation) to [Cascade Lake-based SoC](https://en.wikipedia.org/wiki/Cascade_Lake_(microarchitecture)) (9th generation) are supported. If you possess a more recent SoC from Intel, for instance one based on the Tiger Lake SoC, please pick Phyllome OS Desktop I or Phyllome OS Desktop A instead.
The following section illustrates how to change the boot order *temporarily*. The process to change the boot order depends on your current computer platform. Please follow the instruction that match your platform.
> GRUB defaults to the US keyboard layout. Have a look at [this online resource](https://en.wikipedia.org/wiki/QWERTY#/media/File:KB_United_States.svg) to find the corresponding keys if you are not using a US keyboard layout
> **Danger Zone**: the following instruction will trigger a process that will automatically **destroy** any data located on the internal disk present in your computer *without* asking for a confirmation*
* Leave a blank space after the word `quiet` and write exactly the following `inst.ks=https://ks.phyllo.me/dii`, then press <kbd>Ctrl</kbd> + <kbd>x</kbd> simultaneously or <kbd>F10</kbd>. This command will trigger the automated installation of Phyllome OS.
> If you wish to learn more about how kickstart files are used to create Phyllome OS, please have a look at [the official git repository](https://github.com/PhyllomeOS/phyllomeos).
* **Welcome screen**: on first-launch, for the *Desktop edition*, you will be greeted with the GNOME Welcome Screen. As of now, only English is available out of the box. Click *Next* when you are ready.
> By default, Phyllome OS is set to use the *fr-CH* keyboard layout. This keyboard layout is used by people living in [Romandy](https://en.wikipedia.org/wiki/Romandy), Switzerland, which is also where the original author of Phyllome OS is from.
* **Time zone**: you can pick your current location by clicking on the map or writing it down inside the box. The time will be adjusted according to the provided location.
* **Online Accounts**: Phyllome OS strongly discourages the use of *Online Accounts*, and therefore provides no option here. Click on *Skip* to go to the next screen.
* **Create a user account**: you are invited to create a user account, which by default will be granted administrator or root privileges. Click on *Next* when you are done.
* **Provide a password**: please do provide a strong password. In case you ever forget it, write it down on a piece of paper and store it somewhere safe, or/and rely on an online password manager like [Bitwarden](https://bitwarden.com/). Click on *Next* when you are done.
* **Provide password**: The Virtual Machine Manager is set to auto-launch, and requires elevated permission. Please provide the user password you just set up and click on *Authenticate* to start using Phyllome OS.
> Don't forget to remove the USB flash drive from your computer, so that next time your computer will boot, it will use the internal disk where Phyllome OS has been deployed.
