Wait 2–3 minutes and try again. Some USB sticks need some rest after installing.

Try all other USB ports on the computer. Some USB ports cannot be used to start from.

Make sure that you have installed Tails using either:

[[<i>Rufus</i> from Windows|install/windows#rufus]]

[[<i>balenaEtcher</i> from macOS|install/mac#etcher]]

[[<i>GNOME Disks</i> from Linux|install/linux#install]]

[[the Linux command line|install/expert#install]]

Make sure that you have [[verified your download of Tails|install/download]].

Make sure that you have <a href="#verify">verified your download</a>.

Try to [[install again|install/windows#install]] on the same USB stick.

Try to [[install again|install/mac#install]] on the same USB stick.

Try to [[install again|install/linux#install]] on the same USB stick.

Try to [[install again|install/expert#install]] on the same USB stick.

Try to [[install again|clone/pc#install]] on the same USB stick.

Try to [[install again|clone/mac#install]] on the same USB stick.

Try to [[install again|install]] on the same USB stick.

Try to [[install again|upgrade/tails#install]] on the same USB stick.

Try to [[install again|upgrade/windows#install]] on the same USB stick.

Try to [[install again|upgrade/mac#install]] on the same USB stick.

Try to [[install again|upgrade/linux#install]] on the same USB stick.