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Configure BIOS/UEFI

Turn on the computer

Turn on or restart your computer and watch for a message during the POST about a particular key, usually Del or a function key like F10 (e.g. HP Z2 PC) that you'll need to press to access the BIOS/UEFI setup utility. It's possible, you won't see such message at all, but a vendor splash screen instead.

Enter the BIOS/UEFI Setup Utility

After pressing the correct keyboard command, you'll enter the BIOS/UEFI Setup Utility.

Wipe the harddisk (if possible)

Some systems make wiping the harddisk possible from BIOS/UEFI (e.g. "HP Z2 PC").

Select tab "Security -> Hard Drive Utilities".

Select "Secure Erase".

Confirm your drive.

Read and comprehend the message. Choose "Secure Erase (Format NVM) Clear" in this case.


Confirm again.

The wipe completes successfully.

Select the boot mode

In this tutorial, we do not use BIOS, but UEFI-mode. For e.g. a "HP Z2 PC", select "Advanced -> Secure Boot Configuration".

Choose "Legacy Support Disable, Secure Boot Disable".

Save/confirm your changes and exit

Exit the utility using Esc and save changes.


If you could wipe the harddisk, the sytem tries to PXE boot. If you could not, it may or may not boot. Nevermind. We will eventually erase possible partitions in the next steps. Shutdown the PC by pressing the "power button" long enough.