Can I use all of 5TB Hard Disk with Windows 10?

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  1. Posts : 291
    Windows 10 Pro (x64) 21H1 (OS Build 19043.1165)
       #1

    Can I use all of 5TB Hard Disk with Windows 10?


    Hi folks,

    My 5 y-o Desktop pc with Win 7 is becoming decidedly slow and getting the odd freeze-up, etc. Despite being a long-term fan of Win 7, I've fallen out of love with it, so rather than re-install Win 7, I have decided to move the desktop pc over to Win 10 and I have bought a Win 10 Pro disk.

    I recently upgraded the HDD of the Win 7 pc to a 5TB Toshiba X300 only to find that Win 7 can only see 2TB.

    Will the new OS be able to see and use all 5TB of the disk?

    Cheers,

    Art
      My Computers


  2. Posts : 2,487
    Windows 10 Home, 64-bit
       #2

    I'm guessing you are using the MBR partition style.

    If you want to see all of it, you need to use GPT.

    You can convert to GPT. There are various ways to do that.

    You might want to just re-do the entire Windows installation if you haven't devoted a lot of hours to configuration.

    See here:

    https://docs.microsoft.com/en-us/win...nto-a-gpt-disk
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  3. Posts : 291
    Windows 10 Pro (x64) 21H1 (OS Build 19043.1165)
    Thread Starter
       #3

    ignatzatsonic said:
    I'm guessing you are using the MBR partition style.

    If you want to see all of it, you need to use GPT.

    You can convert to GPT. There are various ways to do that.

    You might want to just re-do the entire Windows installation if you haven't devoted a lot of hours to configuration.

    See here:

    https://docs.microsoft.com/en-us/win...nto-a-gpt-disk
    Thanks for the quick reply :)

    I plan to wipe the 5TB HDD and start over using the GPT table - is there anything else I need to do (e.g. tweak BIOS in some way?)

    e.g. When the W10 installation gets to "Where do you want to install Windows?" I press <Shift> + <F10> to get a command prompt and type in:

    list disk > select disk n (the 5TB disk) > clean > convert gpt > exit.

    Is there anything else I need to do?

    Art
      My Computers


  4. Posts : 2,487
    Windows 10 Home, 64-bit
       #4

    I think that should do it. I've never done the conversion personally.

    Certain software packages can convert also, allegedly without harming your data as I recall.

    Shouldn't have to use the BIOS.

    It shouldn't take more than a half hour to get to the point where you can see if all 5 TB are recognized.

    You might consider splitting up that 5 TB into perhaps 1 TB for Windows and applications and the other 4 TB for a data partition, but that's just personal preference. That might prove to be more convenient later on, but it's up to you.

    I assume you deliberately rejected the idea of an SSD rather than a standard spinning hard drive.
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  5. Posts : 291
    Windows 10 Pro (x64) 21H1 (OS Build 19043.1165)
    Thread Starter
       #5

    ignatzatsonic said:
    I think that should do it. I've never done the conversion personally.

    Certain software packages can convert also, allegedly without harming your data as I recall.
    Yes, I believe AOMEI Partition Assistant Standard (which is free) can do that.

    I assume you deliberately rejected the idea of an SSD rather than a standard spinning hard drive.
    Price excluded the use of a high capacity SSD. The 5TB Toshiba was 115. It is a noisy bugger though!

    Art
      My Computers


  6. Posts : 3,986
    Windows 7 HP 64 - Windows 10 Pro - Lubuntu
       #6

    MBR drive has a limit usable size of 2.2T, in one or multi partitions.

    To use a GPT as a boot able drive you MUST have a UEFI BIOS and Win (7, 8.x or 10) 64 Bits.

    You can use a GPT non boot able drive (data drive) in a Legacy or UEFI BIOS and in a 32 or 64 bits OS.

    You can convert a Legacy - MBR drive into a UEFI - GPT without reinstalling or loosing data.
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  7. Posts : 291
    Windows 10 Pro (x64) 21H1 (OS Build 19043.1165)
    Thread Starter
       #7

    Megahertz said:
    MBR drive has a limit usable size of 2.2T, in one or multi partitions.
    Thank you.

    To use a GPT as a boot able drive you MUST have a UEFI BIOS and Win (7, 8.x or 10) 64 Bits.
    How can I find out if the Mobo/BIOS supports UFEI. What do I need to look for in BIOS - and where?

    Mobo is Gigabyte H61M-DS2 DVI

    BIOS is American Megatrends Inc. F3g UM 05/05/2014

    From what I remember, the Mobo supports UFEI

    You can use a GPT non boot able drive (data drive) in a Legacy or UEFI BIOS and in a 32 or 64 bits OS.
    Didn't know that - thanks.

    You can convert a Legacy - MBR drive into a UEFI - GPT without reinstalling or loosing data.
    Thanks. I knew that. However, I'm planning to install Win 10 as a clean install.

    I have a sneaky feeling that you responded to a post of mine back in February in Seven Forums on this issue!

    I need to make sure that 'UFEI and Legacy' is selected under 'Boot Mode Selection'

    Art
      My Computers


  8. Posts : 3,986
    Windows 7 HP 64 - Windows 10 Pro - Lubuntu
       #8

    Gigabyte H61M-DS2 DVI has UEFI BIOS. Make sure you have the latest non Beta BIOS version (F2) installed.

    I would buy a small SSD (120G - US$28) only for windows and programs and use the HDD for data only. You will have the speed of a SSD and the size of a HDD at low cost. (it's what I have and works great).

    The BIOS settings for windows 7 and 10 are different.
    - Set Boot Mode Selection to UEFI only.
    - Make a Win 10 64 bits installation USB drive using Windows 10 installation media
    - Boot the Win 10 64 bits installation USB drive as UEFI, not Legacy.
    - Go to install and delete all partitions till you have one and only one unallocated space and then proceed.
    - If you have a Win 7 license, use it when asked.
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  9. Posts : 17,272
    Windows 11 Pro
       #9

    @Megahertz is exactly correct. If you find that your computer does not have UEFI, then you would need to get a separate drive to boot from, such as an SSD (128, 256, or 512 GB, etc.) with Windows on it, then use the 5 TB drive for data storage.
      My Computer


  10. Posts : 291
    Windows 10 Pro (x64) 21H1 (OS Build 19043.1165)
    Thread Starter
       #10

    Megahertz said:
    Gigabyte H61M-DS2 DVI has UEFI BIOS. Make sure you have the latest non Beta BIOS version (F2) installed.
    BIOS is American Megatrends Inc. F3g UM 05/05/2014

    However, I'm puzzled because Gigabyte's website only offers 3 different versions of the BIOS firmware:

    F1 dated 17/10/2012

    F2 dated 19/04/2013

    and F3c (a Beta release) dated 25/02/2014

    It doesn't list version F3g dated 25/05/2014

    That okay?

    Link: GA-H61M-DS2 DVI (rev. 1.0) | Motherboard - GIGABYTE Global

    Art
      My Computers


 

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