diff --git a/deploy/prepare.md b/deploy/prepare.md
index 765e1bb..d94ade7 100644
--- a/deploy/prepare.md
+++ b/deploy/prepare.md
@@ -2,7 +2,7 @@
 title:  Checkbox your system
 description: 
 published: true
-date: 2021-11-13T17:20:09.745Z
+date: 2021-11-15T12:00:04.914Z
 tags: 
 editor: markdown
 dateCreated: 2021-11-13T10:47:33.615Z
@@ -16,11 +16,34 @@ dateCreated: 2021-11-13T10:47:33.615Z
 
 These instructions are valid for x86-64 computers that do ship with Linux or Windows
 
-## Enable IOMMU
+> As of now, Phyllome OS only officially supports host computers with Intel CPUs and Intel internal graphics card (iGPU). Other editions will follow.
+{.is-warning}
+
+## Enable hardware-assisted virtualization
+
+For Phyllome OS to work as intended, hardware-assisted virtualization needs to be enabled. 
+
+> For Apple hardware, support for hardware-assisted virtualization seems to depend on you firmware version and your CPU model. Go directly to the `Make sure that hardware-assisted virtualization is enabled` section.
+{.is-info}
 
 ### 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 <kbd>F2</kbd> or <kbd>Del</kbd>.
+
+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.
+
+* **Windows-based computers**
+
+
 ### Modify the firmware configuration
 
 
-*Now that you are done, you can go to the next section to [create an installation medium](/deploy/medium).*
\ No newline at end of file
+*Now that you are done, you can go to the next section to [create an installation medium](/deploy/medium).*
+
+
+### Make sure that hardware-assisted virtualization is enabled 
+
+
+