Windows 8 and 8.1 Forums


How do I format a 3TB HD to full 3TB?

  1. #1

    How do I format a 3TB HD to full 3TB?


    I have a 3TB HD that I want to install Win 8.1 64Bit on, but it does not format to the full drive to 3TB.

    How do I do it to have full 3tb drive?

    Tully

      My System SpecsSystem Spec

  2. #2


    Posts : 8
    Microsoft Windows 8.1


    Your ASUS H81M-PLUS motherboard DVD should have a disk unlocker feature in the utilities section. I'd suggest using that, please let me know if this helps.

    Regards

    -Jgcraig
      My System SpecsSystem Spec

  3. #3


    Quote Originally Posted by Tully View Post
    I have a 3TB HD that I want to install Win 8.1 64Bit on, but it does not format to the full drive to 3TB.

    How do I do it to have full 3tb drive?

    Tully
    You'll have to initialize your Disk GPT and Install your OS UEFI all this information is in the tutorials not sure if your MB has UEFI, your Mother Board documentation should tell you that.
      My System SpecsSystem Spec

  4. #4

    UEFI


    Tried to find tutorial on getting 3TBs out of a 3TB drive!

    Like looking for a needle in a haystack!

    Can you narrow it down!

    Tully
      My System SpecsSystem Spec

  5. #5


    Posts : 8
    Microsoft Windows 8.1


    You will need to follow these instructions that came with your motherboard's manual:

    "Launch PXE OpROM Policy Select UEFI only to run those that support UEFI option ROM only. Select Legacy
    only to run those that support legacy option ROM only.
    Launch Storage OpROM Policy

    Select UEFI only to run those that support UEFI option ROM only. Select Legacy
    only to run those that support legacy option ROM only.
    Launch Video OpROM Policy

    Select UEFI only to run those that support UEFI option ROM only. Select Legacy
    only to run those that support legacy option ROM only."

    -ASUS H81M- Plus, Page 71.

      My System SpecsSystem Spec

  6. #6


    Quote Originally Posted by Tully View Post
    Tried to find tutorial on getting 3TBs out of a 3TB drive!

    Like looking for a needle in a haystack!

    Can you narrow it down!

    Tully
    Search use Diskpart to Clean Disk
    Search install window 8.1 UEFI


    If your worrying that 3 TB is only 2.7 TB that is correct 3 TB is a rounded number commonly used by manufactures of hard drives.https://www.avforums.com/threads/3tb...lable.1532575/
      My System SpecsSystem Spec

  7. #7


    United States
    Posts : 3,093
    Windows 8.1 Pro 64-bit


    Yee old "is a kilobyte really 1000 or 1024 bytes trick".
      My System SpecsSystem Spec

  8. #8


    Thanx guys:

    My Asus Motherboard support disk had the program on it. Just had to search to find as there was no indication in the manual that there was one.

    As I had a 540GB SSD drive already on this computer, but with a 32Bit Win 8.1 OS, I put a new 3TB in & installed Win 8.1 64 bit OS on it with a view to then Cloning it onto the SSD.

    Was surprised when I booted as I now have screen that gives me a choice of what drive to boot to!

    Tully
      My System SpecsSystem Spec

  9. #9


    Quote Originally Posted by Tully View Post
    Thanx guys:

    My Asus Motherboard support disk had the program on it. Just had to search to find as there was no indication in the manual that there was one.

    As I had a 540GB SSD drive already on this computer, but with a 32Bit Win 8.1 OS, I put a new 3TB in & installed Win 8.1 64 bit OS on it with a view to then Cloning it onto the SSD.

    Was surprised when I booted as I now have screen that gives me a choice of what drive to boot to!

    Tully
    Yes that's because you have 2 OS to select from. I would advise use disk part to clean your SSD and Convert to GPT. Then use Macrium Reflect clone your OS Back to the SSD. Then format your 3TB again its not legal to have 2 Instances of window installed. You SSD will be about twice or more faster in UEIF GPT mode.
      My System SpecsSystem Spec

How do I format a 3TB HD to full 3TB?
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