[[!meta title="Starting Tails from an external hard disk or problematic USB stick"]]
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When starting Tails from an external hard disk or [[problematic USB stick|support/known_issues#problematic-usb-sticks]], Tails might return the following error message:
If the **External Hard Disk** entry does not appear in the Boot Loader, then remove the `live-media=removable` boot option. To do so, see our instructions on [[modifying the boot options using the Boot Loader|doc/advanced_topics/boot_options]].
<p>Choosing the <b>External Hard Disk</b> entry in the Boot Loader or removing the <code>live-media=removable</code> boot option might be dangerous. If an adversary had access to the computer and installed a malicious Tails on the internal hard disk, the computer might start on the malicious Tails instead of on the USB stick.</p>
