1.    27 Jul 2015 #1
    Join Date : Jun 2015
    Posts : 7
    Windows 10 Home 64 bit

    W10 install in UEFI mode


    When I receive the Windows 10 download on July 29th or whenever they send it to me, I want to install it in UEFI mode.
    I am using Windows 8.1 64 bit currently and it is installed in BIOS mode. (Long story, I've never been willing to clean install after I had W8.1 up and running, I have new different computer now but same OS. Like I said, long story).
    All my hardware is UEFI capable.
    So will the new OS tell me which it recommends? Will I be required to clean install W10 to switch everything to UEFI?
    Will this be self explanatory during the install process?
    My system specs:
    Operating System: Windows 8.1 64 bit
    Motherboard: Asus Sabertooth 990FX R2.0
    CPU: AMD FX8320 8 Core CPU 3.5- 4.9Ghz
    Graphics: Sapphire Radeon R9 280X
    Memory: Team Zeus DDR3 16Gb
    SSD: Samsung 850 Evo 500Gb
    HDD: WD 1000Gb Black
    External HDD: WD 1000Gb My Book
    OD: Pioneer Blu-ray Drive combo.
    PSU: EVGA 850W modular Gold certified
    Thanks.
    Last edited by Gword; 27 Jul 2015 at 17:18.
      My ComputerSystem Spec
  2.    27 Jul 2015 #2
    Join Date : Oct 2014
    Posts : 107
    Windows 10

    edit: I misunderstood your question, so I edited the message.

    Quote Originally Posted by Gword View Post
    I am using Windows 8.1 64 bit currently and it is installed in BIOS mode.
    Will I be required to clean install W10 to switch everything to UEFI?
    Yes.

    Asus motherboard with UEFI firmware - How to install Windows 7/8/10 64-bit in UEFI Boot Mode. -> link

    Note: You need to select to boot from the UEFI type (marked UEFI in the boot menu) if you want to install Windows 7/8/10 64-bit in UEFI Boot Mode (see screenshot below).

    Note: You do not need to change the boot order of drives in your UEFI firmware settings.
    - Connect your Windows 7/8/10 64-bit USB flash drive (Note: FAT32 file system) or insert your Windows 7/8/10 64-bit DVD.
    - Restart the computer.
    - Press the correct key to enter the boot menu (Esc, F8, F9, F10, F11, F12).
    - Select to boot from the "UEFI: USB/DVD device name".

    Click image for larger version. 

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    Here is info about UEFI Boot Mode (installing using the GPT partition style) and Legacy BIOS Boot Mode (installing using the MBR partition style). -> link

    Click image for larger version. 

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    Click image for larger version. 

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    Last edited by genet; 27 Jul 2015 at 12:07.
      My ComputerSystem Spec
  3.    27 Jul 2015 #3
    Join Date : Sep 2014
    Nashville, TN
    Posts : 3,143
    Windows 10 Pro

    You have to upgrade your Windows 8.x in order to get the free upgrade, that means leaving it in the same boot mode it's always been in. After that upgrade, you can download the ISO from Microsoft and do a clean install, but you must perform the upgrade at least once.
      My ComputerSystem Spec
  4.    28 Jul 2015 #4
    Join Date : Jun 2015
    Posts : 7
    Windows 10 Home 64 bit
    Thread Starter

    Quote Originally Posted by Mystere View Post
    You have to upgrade your Windows 8.x in order to get the free upgrade, that means leaving it in the same boot mode it's always been in. After that upgrade, you can download the ISO from Microsoft and do a clean install, but you must perform the upgrade at least once.
    Yes I think you're correct. I will hold off on installation of W10 for a few days and come back here often to this forum often to see what others are experiencing and I'll be looking for some nice screenshots of the install process.
      My ComputerSystem Spec
  5.    04 Aug 2015 #5
    Join Date : Aug 2015
    Posts : 14
    10

    Quote Originally Posted by Mystere View Post
    You have to upgrade your Windows 8.x in order to get the free upgrade, that means leaving it in the same boot mode it's always been in. After that upgrade, you can download the ISO from Microsoft and do a clean install, but you must perform the upgrade at least once.
    (Subbed) This is what I figured. Thankfully my win 8.1 install is in UEFI and I reformatted only a month or so ago so prolly no
    need to do a clean install but I might anyway just to make sure I dont have a windowsold folder etc.
      My ComputerSystem Spec

 


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