11

English

Switch on the computer.

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12

English

Immediately press-and-hold the <b>Option</b> key (<b>⌥</b> or <b>Alt</b> key) when the startup sound is played.

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15

English

Choose the USB stick and press <b>Enter</b>. The USB stick appears as an external hard disk and might be labeled <b>EFI Boot</b> or <b>Windows</b> like in the following screenshot:

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16

English

[[!img install/inc/screenshots/mac_startup_usb.png class="screenshot" alt="Screen with the logo of an internal hard disk labeled 'Macintosh HD' and an external hard disk labelled 'Windows' (selected)"]]

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27

English

[[!img install/inc/screenshots/startup-security-utility.png class="screenshot" alt="Startup Security Utility"]]

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37

English

[[!img install/inc/screenshots/grub.png class="screenshot" alt="Black screen ('GNU GRUB') with Tails logo and 3 options: 'Tails' and 'Tails (Troubleshooting Mode)' and 'Tails (External Hard Disk)'."]]

200/10000 · 200

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