If Tails does not start properly, refer first to the known issues page. Similar issues might have already been reported for the same model of computer.
Otherwise refer to the following sections, depending on whether or not the boot menu appears when starting Tails:
The following section applies if the boot menu does not appear when starting Tails.
Refer to the instructions on how to start Tails, especially the section about BIOS settings.
If none of this works, send us an email including the following information:
Which version of Tails are you trying to start?
Did you verify the ISO image?
Which is the brand, and model of the computer?
What exactly happens when trying to start? Report the complete error message that appears on the screen, if any.
From which media are you trying to start Tails: DVD, USB stick installed manually, USB stick installed with Tails Installer, SD card? Keep in mind that, we do not support any other installation method than the ones listed above.
Have you been able to start Tails successfully on this computer before, from another media, or with another version of Tails? If so, which ones?
Does the same media start successfully on other computers?
Have you been able to start Tails successfully on the same computer using different installation methods? For example, it might start from a DVD but not from a USB stick.
What installation method did you use to set up Tails?
In the graphical boot menu, press
quietoption from the boot command line.
Hopefully, this displays useful messages while starting Tails. You can then include them in a bug report to be sent:
If the error message is
/bin/sh: can't access tty; job control turned offfollowed by
(initramfs), then try removing the
When removing this option, if an adversary installed a fake Tails on an internal hard disk, then you will likely be starting this dangerous operating system instead of the genuine Tails that you intended to use.
live-media=removableallows you to start Tails, please report a bug as documented above: this allows us to improve the list of problematic USB sticks. In this case, you should install Tails on another, better supported USB stick.