UEFI Bios: How to boot from usb flash drive

This post is also available in: Italian

With the introduction of Windows 8, the old BIOS was also set aside to introduce a new version, the UEFI Bios.

With the “new BIOS” (firmware UEFI) we will find some difficulty starting the PC (or notebook) from a usb flash drive, CD / DVD player or external hard drive. In the EUFI, the Secure Boot feature is integrated, which blocks malware that could attack the system in the pre-boot phase, and also prevents the installation of various Linux distributions and all non-certified operating systems.

So, if we want to start our PC from an external device, we will have to change settings on our UEFI firmware.

UEFI Bios : How to boot from usb flash drive:

Note: These guidelines can be applied to all UEFIs even if, at times, they are slightly different from each other according to manufacturers.

How to boot from usb

  • Insert the support from which we want to boot;
  • Enter the bios (How to access UEFI Bios on Windows 10, 8.1 and 8);
  • Based on the Bios, we look for Legacy Mode or Launch CSM. By activating the legacy mode, all the functions related to the UEFI are disabled. While Enabling Launch CMS will allow us to start any operating system (usually we find one or the other based on the PC model);
  • Now let’s disable two voices: FAST BOOT and SECURE BOOT;
  • As a last step, move on the BOOT section and modify the boot sequence according to our needs;
  • Click on Save changes and Exit – OK;
  • At the next reboot, the PC will be started by the selected device.

Now we can start our pc with the device we prefer. We can install any operating system or start testing.

DISCLAIMER: Geek’s Lab will not be held responsible for any damage caused by uncorrect use of the guide.

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