UEFI BIOS How to Install Windows 7

This article will be discussed how to install Windows in UEFI mode on the GPT section, and also show how to switch the SATA controller mode from IDE in AHCI.

1

Initial preparation

• First, I want to report the need when installing Windows delete all partitions from the hard disk. Therefore, save all the data in advance.
• You will also need to create a UEFI bootable USB flash drive. Such a flash drive can be created using the WinsetupFromusB program.
• You can also use the official Microsoft tool called MediaCreationTool. With this program, you can create an image.
• It looks simple enough, it needs to choose the version of Windows, the bit, as well as the language and then will create a UEFI flash drive.

2

BIOS settings

• After creating such a flash drive, it should be connected to the computer and then go to the BIOS.
• After entering the BIOS, you open Bios Features and go down here.
• Select the System in the Security Option item.
• Select Oter OS in OS Type.
• select Always in CSM Support item.
• Select UEFI ONLY in Boot Mode Selection.
• Select UEFI ONLY in Storage Boot Option Control.
• Select the UEFI OPROM in the Other PCI Device Rom Priority item.
• Select Disabled in Lan Pxe Boot Option Rom.
• Next, save the BIOS settings in the Save & Exit tab by clicking the Save & Exit Setup option.

3

Selecting the loading flash drive

• After re-starting the computer, press the F12 key to select the device from which it will be loaded.
• A window appears in which you will need to select the boot flash drive connected to the computer from the available Windows. It supports the installation of UEFI.
• With the right BIOS settings in this window you can choose a flash drive.
• Then press the ENTER key and setting the installation.
• In the window where you need to select a section to install, you will need to delete all sections and then create them again.
• In this case, an automatic conversion from MBR in GPT will occur, then continue the installation of Windows by selecting the installation site of the system.

As a result, we learned the installation of the operating system through the UEFI BIOS using the boot flash drive.