HP EliteBook Bios

Enter BIOS setup = F12.

1. Secure Boot = 🗵
2. Fast Boot = 🗵

• USB Hard Drive = External USB Key / Drive (maybe requires left side USB port).
• OS Boot Options = Windows / Linux, internal hard drive.

• Legacy - Shouldn't need this, but try it if UEFI Hybrid doesn't work.
• UEFI Hybrid (CSM) - Shouldn't need this, but try it if UEFI Native doesn't work.
• UEFI Native (without CSM) - This is the one you want.

UEFI Native without CSM refers to a boot mode that allows your computer to start using the UEFI firmware without the Compatibility Support Module (CSM), which is used for legacy BIOS compatibility. This mode is generally preferred for better security and performance, but it may require reinstalling the operating system if it was previously installed in legacy mode.