BIOS setup utility Erazer x series desktop (lenovo) Lenovo Erazer X510 Desktop (Lenovo) - Type 10140

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User Guide

Windows Help and Support

If you have a problem with the operating system, see the Windows Help and 
Support file. To open the Windows Help and Support file, do one of the following:
•  Select the Settings charm, then select Help.
•  Press Windows key   + F1.
You can read the Windows Help and Support file on your computer. You can also 
get online help and support by clicking on one of the two links listed under More 
to explore.

BIOS setup utility

What is the BIOS setup utility?
The BIOS setup utility is ROM-based software. It communicates basic computer 
information and provides options for setting boot devices, security, hardware 
mode, and other preferences.

How can I start the BIOS setup utility?
To start the BIOS setup utility:
1.  Shut down the computer.
2.  Repeatedly press and release the F1 key once turning on the computer to start 

the Setup Utility program.

How can I change the boot mode?
There are two boot modes: UEFI and Legacy. To change the boot mode, start the 
BIOS setup utility and select Startup 

→ Boot Priority, then set boot mode to UEFI 

or Legacy support on the boot menu.

When do I need to change the boot mode?
The default boot mode for your computer is the UEFI mode. If you need to install a 
legacy Windows operating system (any operating system before Windows 8.1) on 
your computer, you must change the boot mode to Legacy support. The legacy 
Windows operating system cannot be installed if you don’t change the boot mode.