With both techniques, all the data stored in [[!wikipedia Random-access_memory desc="RAM"]] is securely erased to protect you from [[cold boot attacks|doc/advanced_topics/cold_boot_attacks]].
Choose [[!img lib/view-refresh.png link="no" class="symbolic" alt="Restart icon"]] to restart the computer on Tails or on your regular operating system.
To trigger an emergency shutdown, unplug the USB stick or eject the DVD from which Tails is running. Doing so might be faster than shutting down from the system menu.