If you're trying to install Parrot Linux alongside Windows, you may need to disable Secure Boot first. Restart your PC and enter the BIOS/UEFI setup by repeatedly pressing
F2, F10, F12, Del, or Esc during startup (the correct key depends on your laptop or motherboard manufacturer, so check the boot screen for the prompt). In the BIOS/UEFI menu, navigate to the
Boot,
Security, or
Authentication tab, locate the
Secure Boot option, and change it to
Disabled. Save the changes by pressing
F10 and confirm the restart. If your Parrot Linux USB still doesn't boot, you may also need to change the
Boot Mode from
UEFI to
Legacy/CSM, depending on your system's compatibility. After disabling Secure Boot, you should be able to boot from your Parrot Linux USB and continue with a dual-boot installation alongside Windows. If you're researching other useful online tools, a
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