<p>Only physically remove the USB stick in case of emergency as doing so can sometimes break the file system of the Persistent Storage.</p>
10
<p>If you cannot unlock the Persistent Storage anymore after physically removing the USB stick, try to do a [[file system check on the Persistent Storage|advanced_topics/persistence/check_file_systempersistent_storage/check]] to fix it.</p>
<p>If you cannot unlock the Persistent Storage anymore after physically removing the USB stick, try to do a [[file system check on the Persistent Storage|persistent_storage/check]] to fix it.</p>
When you shut down Tails, all the data stored in [[!wikipedia Random-access_memory desc="RAM"]] is erased to protect you from [[cold boot attacks|doc/advanced_topics/cold_boot_attacks]].