Which of the following keys, when pressed immediately after the BIOS test, will display Windows Boot Manager on a Windows 7 PC?

F2 is commonly used during POST to enter BIOS/UEFI setup firmware, not to display the Windows Boot Manager.

F8 launches the Windows Advanced Boot Options screen (Safe Mode, Last Known Good Configuration, etc.) after the Boot Manager stage, not the Boot Manager itself.

On most systems running Windows 7, pressing ESC after the BIOS POST completes and before the OS loader takes over interrupts the automatic boot selection and displays the Windows Boot Manager, which lists available operating systems and boot options. This is distinct from F8, which loads the Advanced Boot Options menu after the Boot Manager has already handed off to the Windows loader.

The Delete key is typically used to enter BIOS/UEFI setup on many motherboards during POST, not to display Windows Boot Manager.