Windows 8 and 8.1 Forums


How to install Windows 8.1 in UEFI mode with bootable dvd

  1. #1


    Posts : 11
    Windows 8.1 PRO x64bit (update 1)

    How to install Windows 8.1 in UEFI mode with bootable dvd?


    Hello All

    I have original ISO file from MSDN website - it is Windows 8.1 Update 1 Enterprise (x64) MSDN version with Slovak language interface.
    Im create a bootable DVD (Verbatim DVD-R 4,7GB) in program ISO2Disc. This ISO I would like to install on to my system , more details about my pc - see my system specification. My motherboard is MSI Z77 Mpower with latest version UEFI - BIOS 17.12

    I have a few question about installation a new windows 8.1 in uefi mode:

    -what a bootable media is better ? I think USB stick or DVD disc
    -what the function in the BIOS I must turn on or off, I mean the fast boot or memory fast boot
    -UEFI mode is better then LEGACY mode ?

    I have a bootable DVD Parted Magic , it is good Partition Manager. I must change MBR format to GPT - only GPT is supported format for UEFI , is it rue ? So , now i should format all disc inside my pc (secure erase for ssd disc and wipe for hhd). I can create NTFS partition with GPT format and aligned to 1204MB for all solid state discs and HDD. I can do this ?

    Im sorry for my english. I try to understand me. Thank you for all the helpful advice.

      My System SpecsSystem Spec

  2. #2


    Posts : 5,592
    ME, XP,Vista,Win7,Win8,Win8.1


    To clean install:
    1) Clean the HD Drive, using Step one in this tutorial:
    SSD / HDD : Optimize for Windows Reinstallation - Windows 7 Help Forums
    than
    2a) Clean install with the OEM manufacturer's Recovery Disk.

    2b) Clean Install - Windows 8


    2c) UEFI (Unified Extensible Firmware Interface) - Install Windows 8 with

    For USB:

    x64
    UEFI Bootable USB Flash Drive - Create in Windows
      My System SpecsSystem Spec

  3. #3


    Posts : 879
    Windows 10


    Quote Originally Posted by Jesper View Post
    UEFI mode is better then LEGACY mode ?
    Secure Boot only works in UEFI Boot Mode, when you enable Secure Boot in your PC's UEFI firmware (BIOS) settings.

    Secure Boot protect users from rootkits and other low-level malware attacks by blocking unauthorized (non-signed) executables and drivers from being loaded during the boot process.

    Quote Originally Posted by Jesper View Post
    what the function in the BIOS I must turn on or off
    Windows 8 Feature: Enabled
    MSI Fast Boot: Enabled
    Secure Boot: Enabled

    Quote Originally Posted by Jesper View Post
    and aligned to 1204MB for all solid state discs and HDD.
    Not needed. Only in Windows XP (if you use SSD).

    Quote Originally Posted by Jesper View Post
    I have a bootable DVD Parted Magic , it is good Partition Manager. I must change MBR format to GPT - only GPT is supported format for UEFI , is it rue ? So , now i should format all disc inside my pc (secure erase for ssd disc and wipe for hhd).
    If you clean your hard disk at the command prompt, you do not need to enter the convert gpt command if you do not create new partitions at the command prompt.

    But Windows 7/8/8.1 installation should succeed without the clean command.
    - Press the correct key to enter the boot menu.
    - Select your USB/DVD from the boot menu. Note: You must select UEFI: USB or UEFI: DVD
    - If you want to delete the MBR/GPT partition table entry on the Where do you want to install Windows? screen, then you must delete all partitions until you only see Drive 0 Unallocated Space.

    Here is more info: Windows 7/8 setup: Installing using Legacy BIOS Boot Mode or UEFI Boot Mode.
      My System SpecsSystem Spec

  4. #4


    Posts : 11
    Windows 8.1 PRO x64bit (update 1)


    Big THX , its absolutelly awesome ! Now i know what i need do.
      My System SpecsSystem Spec

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