Most computers do not start on the Tails USB stick automatically but you can press a Boot Menu key to display a list of possible devices to start from.
If Windows 8 or 10 is also installed on the computer, you can refer instead to the [[instructions on starting Tails from Windows 8 or 10|doc/first_steps/start/pc#windows-restart]]. Starting Tails from Windows is easier than using the Boot Menu key.
The following screenshot is an example of a Boot Menu:
[[!img install/inc/screenshots/boot_menu.png link="no" alt=""]]
This animation summarizes how to use the Boot Menu key to start on the USB stick:
The following instructions explain in detail how to use the Boot Menu key to start on the USB stick:
Shut down the computer while leaving the USB stick plugged in.
Shut down the computer and plug in the Tails USB stick.
Shut down the computer.
Plug in the other Tails USB stick that you want to install upgrade from.
Unplug your Tails USB stick while leaving the intermediary USB stick plugged in.
Identify the possible Boot Menu keys for the computer depending on the computer manufacturer in the following list:
|Acer||Esc, F12, F9|
|Lenovo||F12, Novo, F8, F10|
|Samsung||Esc, F12, F2|
|Sony||F11, Esc, F10|
On many computers, a message is displayed very briefly when switching on that also explains how to get to the Boot Menu or edit the BIOS settings.
Switch on the computer and immediately press several times the first possible Boot Menu key identified in step 2.
If the computer starts on another operating system or returns an error message, shut down the computer again and repeat step 3 for all the possible Boot Menu keys identified in step 2.
If a Boot Menu with a list of devices appears, select your USB stick and press Enter.
If the Boot Menu key that works on your computer is a different one than the first in the list, please let us know so we can improve the list. You can write to [[firstname.lastname@example.org]] (private email).
If the computer starts on Tails, the Boot Loader appears and Tails starts automatically after 4 seconds.
[[!img install/inc/screenshots/grub.png link="no" alt="Black screen ('GNU GRUB') with Tails logo and 2 options: 'Tails' and 'Tails (Troubleshooting Mode)'."]]
If none of the possible Boot Menu keys from the previous technique work or if your USB stick is not listed in the Boot Menu, refer to the [[troubleshooting instructions about Tails not starting at all|doc/first_steps/start/pc#not-at-all]].