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How to install Windows 10 in UEFI boot mode?

Anonymous
2024-05-22T04:32:55+00:00

When I bought my laptop, Windows 10 started in UEFI boot mode. Then I boot into Windows 10 Legacy Boot Mode. Later when trying to install Windows 10 again in UEFI boot mode it cannot be installed at all. Installs only in legacy boot mode. Technicians also tried but failed to install Windows 10 in UEFI boot mode. How to install Windows 10 in UEFI boot mode?

Windows for home | Windows 10 | Performance and system failures

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  1. Anonymous
    2024-05-22T08:49:17+00:00

    It is not correct the Media Creation Tool is GPT only.

    You can boot an MCT created USB both ways.

    But you cannot boot the drive in MBR mode an then install in GPT mode.

    They way you install Windows is determined by the mode you boot the drive in. There is no choice afterwards.

    Boot your device in UEFI mode as yes, you can make the wrong choice. If the disk is currently in MBR style, you need to delete all partitions.

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  2. DaveM121 872.1K Reputation points Independent Advisor
    2024-05-22T06:07:24+00:00

    Hi, I am Dave, I will help you with this.

    If you create a bootable USB with the official Microsoft Media Creation Tool, that will only instal Windows 10 in UEFI Mode.

    If your current Windows 10 is installed in Legacy BIOS Mode, then the target drive will have an MBR partition Style, and that needs to be converted to a GPT partition Style, which will result in loss of all data on the drive, also, in BIOS, you need to disable CSM support to switch your BIOS to UEFI Mode.

    To convert your Drive to GPT:

    At the very start of the installation process, press Shift + F10, or Shift + Fn + F10 to open Command Prompt

    Run this command and hit Enter:

    diskpart

    Run this command and hit Enter:

    list disk

    (Make note of the disk number you want to convert and enter it into the next command - replace X)

    Run this command and hit Enter:

    select disk X

    Run this command and hit Enter:

    clean

    Run this command and hit Enter:

    convert gpt

    Then close Command Prompt

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