diff --git a/deploy/prepare.md b/deploy/prepare.md
index f979b6c..3968bad 100644
--- a/deploy/prepare.md
+++ b/deploy/prepare.md
@@ -2,7 +2,7 @@
title: Preparation
description:
published: true
-date: 2021-11-15T15:39:49.074Z
+date: 2021-11-17T22:13:28.351Z
tags:
editor: markdown
dateCreated: 2021-11-15T15:39:49.074Z
@@ -42,19 +42,65 @@ virtual machines. For instance, on a system with a CPU with 4 cores and 8 GB of
* NVME-based storage device to store disk images and Phyllome OS
* Two graphics cards or a graphics card that supports vfio-mdev or SR-IOV
-## Enable IOMMU
+## Enable hardware-assisted virtualization
### Access the firmware
-During the boot process, you need to press a certain key to access the firmware configuration tool for your motherboard, also known as BIOS or UEFI.
+
-The most common keystrokes are F2 or Del.
+The Open Virtual Machine Firmware (OVMF), which is based on the TianoCore firmware, is the default firmware for EFI-based virtual machines. It can be accessed using the Esc key.
-Hardware manufacturers could not agree on a common keystroke to access the firmware configuration tool, so please have a look at the documentation provided by your hardware manufacturer.
+* **Since Windows 8**: command-line instructions
-* **Windows-based computers**
+Press the Win and X keys simultaneously to make a context menu appears. Then press Shift and a to politely ask Windows to open `Powershell` using elevated privileges, and click on the `Yes` button to bypass the User Account Control pop-up. Finally, input the following command inside the command prompt and press `enter`.
+
+```
+shutdown /fw /r
+```
+* **Since Windows 8**: a visual walk-through
+
+* Open the start-up menu and write `start-up`, then select *Change advanced start-up options*
+
+
+
+* Under the *Advanced start-up* section, click on `Restart now`
+
+
+
+* Select `Troubleshoot`
+
+
+
+* Then select `Advanced options`
+
+
+
+* Select `UEFI Firmware Settings`
+
+
+
+* Hit `Restart`
+
+
+
+* **macOS-based computers**
+
+Hardware-assisted virtualization is a hit or miss on Apple computers, as there is no way to access the firmware on these computers. Apple users can jump to the section *Make sure that hardware-assisted virtualization is enabled* to check whether this feature is activated or not on their particular model.
+
+* **Other computers**
+
+Make sure the targeted computer is shut down.
+
+During the POST phase, you need to press a certain key to access the firmware configuration tool for your motherboard, which is part of your BIOS or UEFI.
+
+Just after pressing the `power-on`, press one the following common keystrokes are F2 or Del, depending on your model.
+
+> Do not hesitate to repeatedly press the key to make sure it is registered
+{is.info}
+
+> Hardware manufacturers could not agree on a common keystroke to access the firmware configuration tool, so, if the given keys do not work out for you, please have a look at the documentation provided by the manufacturer of your computer.
+{is.info}
-`to be done`
### Modify the firmware configuration
@@ -64,4 +110,16 @@ Hardware manufacturers could not agree on a common keystroke to access the firmw
`to be done`
----
\ No newline at end of file
+* **Windows**
+
+* **macOS**
+
+* **Linux**
+
+> Failing to activate hardware-assisted virtualization will make running virtual machines extremly slow, if possible at all. If, for some reasons, it cannot be activated on your computer, you would be better off picking a Linux distribution which doesn't require it, such as [Debian](https://www.debian.org/distrib/).
+{.is-warning}
+
+
+---
+
+*If the activation is successful, you can go to the next section [to prepare an installation medium](https://wiki.phyllo.me/deploy/medium).*
\ No newline at end of file