Windows 10: 4tb Hard drives showing as 2tb

Discus and support 4tb Hard drives showing as 2tb in Windows 10 Drivers and Hardware to solve the problem; Microsoft Windows 10 Pro 64-bit (2009, 19042.985) Version: 10.0.19042 I have 2 Seagate Barracuda drives that only show as 2tb. They are gpt. This is... Discussion in 'Windows 10 Drivers and Hardware' started by daveb47, Jun 13, 2021.

  1. DAVEB47
    daveb47 Win User

    4tb Hard drives showing as 2tb


    Microsoft Windows 10 Pro 64-bit (2009, 19042.985) Version: 10.0.19042 I have 2 Seagate Barracuda drives that only show as 2tb. They are gpt. This is since using them in raid in nas. tried everything in this thread Disk Management shows new 4TB disk as 2TB despite using GPT Drives are F & G in screenshot,i have 2 other 4tb drives that are fine.

    :)
     
    daveb47, Jun 13, 2021
    #1
  2. EMILYWANG2
    emilywang2 Win User

    New 4TB Hard Drive Read As 1.6TB

    The 4TB drive only shows 1.6TB, there always are two reasons for that:

    1.The 4TB hard drive has been initialized to a wrong partition table. If you find a formatted hard drive not showing full capacity, which is mainly because you format the
    4TB hard drive to MBR partition table. As we all know, MBR partition table cannot address to the space that exceeds 2TB. As a result, to use a full capacity of a hard drive that is larger than 2TB, you need to initialize it to GPT partition table
    via
    an MBR to GPT converter    .

    2.The 4TB external hard drive does not connect correctly. Some portable hard drive and USB hard drive are designed to connect a PC via a USB port. If you install the USB hard drive to your computer, the hard drive capacity detecting may
    become an issue. An accepted explanation is the controller board of USB hard drive breaks the 2TB limitation, yet Windows internal device controller does not. Therefore, you need to additional hardware to make the installed USB/portable hard drive showing
    full capacity. In that case, all you need to do is connecting the 4TB USB hard drive via USB port.
     
    emilywang2, Jun 13, 2021
    #2
  3. SANHIME
    Sanhime Win User
    Cloning from 1TB to 2TB hard drive

    Whats a good free imaging/cloning program? I have a 1TB hard drive with Win7 and I want to seamlessly migrate my stuff to a 2TB hard drive. Any suggestions?
     
    Sanhime, Jun 13, 2021
    #3
  4. SLANCE310
    slance310 Win User

    4tb Hard drives showing as 2tb

    4TB Hard Disk Installation issue

    Hi,

    Have you tried the Partition Wizard stuff, or with Windows...

    If Gparted is not showing 4TB, then 4TB is either above it's limit, or the problem is with the BIOS...

    BTW... Is this a internal drive, or external ?

    Seagate does some funny stuff with the circuitry in their enclosures to make drives larger than 2TB work on any machine...
     
    slance310, Jun 13, 2021
    #4
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4tb Hard drives showing as 2tb

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