Disable Secure Boot

At the moment, NixOS/Clan does not support Secure Boot. Therefore, you need to disable it in the BIOS. You can watch this video guide or follow the instructions below:

Insert the USB Stick🔗

• Begin by inserting the USB stick into a USB port on your computer.

Access the UEFI/BIOS Menu🔗

• Restart your computer.
• As your computer restarts, press the appropriate key to enter the UEFI/BIOS settings.

The key depends on your laptop or motherboard manufacturer. Click to see a reference list:

Manufacturer	UEFI/BIOS Key(s)
ASUS	Del, F2
MSI	Del, F2
Gigabyte	Del, F2
ASRock	Del, F2
Lenovo	F1, F2, Enter (alternatively Fn + F2)
HP	Esc, F10
Dell	F2, Fn + F2, Esc
Acer	F2, Del
Samsung	F2, F10
Toshiba	F2, Esc
Sony	F2, Assist button
Fujitsu	F2
Microsoft Surface	Volume Up + Power
IBM/Lenovo ThinkPad	Enter, F1, F12
Biostar	Del
Zotac	Del, F2
EVGA	Del
Origin PC	F2, Delete

Note

Pressing the key quickly and repeatedly is sometimes necessary to access the UEFI/BIOS menu, as the window to enter this mode is brief.

Access Advanced Mode (Optional)🔗

• If your UEFI/BIOS has a Simple or Easy mode interface, look for an option labeled Advanced Mode (often found in the lower right corner).
• Click on Advanced Mode to access more settings. This step is optional, as your boot settings might be available in the basic view.

Disable Secure Boot🔗

• Locate the Secure Boot option in your UEFI/BIOS settings. This is typically found under a Security tab, Boot tab, or a similarly named section.
• Set the Secure Boot option to Disabled.

Change Boot Order🔗

• Find the option to adjust the boot order—often labeled Boot Order, Boot Sequence, or Boot Priority.
• Ensure that your USB device is set as the first boot option. This allows your computer to boot from the USB stick.

Save and Exit🔗

• Save your changes before exiting the UEFI/BIOS menu. Look for a Save & Exit option or press the corresponding function key (often F10).
• Your computer should now restart and boot from the USB stick.