4. System Boot and Firmware Interaction

• Step 1: Boot Menu Access and Selection

  • Turn the computer off completely

  • Insert the Tails USB

  • Turn the computer on

  • Immediately press the boot menu key

  Common keys are:

  • F12

  • F10

  • F9

  • ESC

  • DEL
    (depends on the computer)

  When the boot menu appears:

  • Select the USB device

  • Press Enter

  Simple idea:
  You are telling the computer: “Start from the USB, not from Windows.”

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  Step 2: UEFI vs Legacy Boot (Basic Understanding)

  You may see terms like:

  • UEFI

  • Legacy

  • BIOS

  Do not panic.

  • These are different ways computers know how to start

  • Modern computers usually use UEFI

  • Older computers may use Legacy

  What to remember:

  • If USB does not boot in one mode, it may work in the other

  • You do not need deep knowledge—just awareness

  Simple idea:
  Different computers start in different ways.

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  Step 3: Secure Boot Interaction Scenarios

  Some computers have Secure Boot enabled.

  What this means:

  • The computer blocks operating systems it does not recognize

  If Tails does not start:

  • Secure Boot may be the reason

  • You may need to:

    • Enter firmware settings

    • Temporarily disable Secure Boot

  Important:

  • This is common

  • This does not mean something is broken

  Simple idea:
  Secure Boot can stop Tails from starting.

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  Step 4: Boot Failure Diagnostics (When Things Don’t Work)

  If the computer does not boot from USB, check:

  • Did you select the correct USB?

  • Was the USB fully written?

  • Did the boot menu open correctly?

  • Does the screen show errors or just skip the USB?

  What to do:

  • Power off

  • Try again calmly

  • Do not randomly change settings

  Simple idea:
  When boot fails, stop and check one thing at a time.

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  Step 5: Hardware Compatibility Observations

  Some hardware may behave differently:

  • USB ports may not detect the drive

  • Some keyboards may not work early

  • Some laptops may ignore USB booting

  Things to note:

  • Try a different USB port

  • Try another computer if possible

  • Hardware issues are normal, not mistakes

  Simple idea:
  Not all computers behave the same with Tails.

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  Step 6: Successful Boot Confirmation

  You know it worked when:

  • The Tails logo appears

  • You see a welcome or loading screen

  • The normal operating system does not load

  Once this happens:

  • You have successfully booted from USB

  • You can continue to the next step

  Simple idea:
  If you see Tails, you are on the right path.

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Next

5-initial-tails-startup-and-welcome-screen