Windows 8 and 8.1 Forums

Format a 2nd HDD - restore later w/out losing settings?

  1. #11

    Posts : 2,690
    Windows 3.1 > Windows 10

    A UEFI system will see the MBR disk as needing to be initialized and formatted..

      My System SpecsSystem Spec

  2. #12

    Posts : 111
    Windows 8.1 Pro with Media Center

    That's what I thought. Thanks for that clarification
      My System SpecsSystem Spec

  3. #13

    Posts : 16
    Windows 8.1 Pro

    Thanks for clearing it up. I suppose I'll look for another solution to my problems.

    MBR and GPT can not coexist on the same system
    I'm not even 100% sure if a UEFI system would do a hard disk with MBR.
    In regards to MBR for storage, well, I have a question. Both my Disk 0 & 1 are indeed GUID, however, I have an external HDD which is MBR (it works fine obviously). Is it just the case with external storage (USB +drivers instead of SATA, or something, maybe?), or are your assumptions false?

    My third disk/external storage - MBR:

    Click image for larger version
      My System SpecsSystem Spec

  4. #14

    Posts : 1,875
    Windows 10 Pro Prieview x64

    Do you need to format it? You can convert GPT to MBR and keep the data if you want using partition wizard How to Convert GPT Disk to MBR Disk | MiniTool Partition Wizard Tutorial or gdisk Converting to or from GPT

    You could try that as you have a backup anyway.
      My System SpecsSystem Spec

  5. #15

    Posts : 111
    Windows 8.1 Pro with Media Center

    That was what the other guy cleared up for me, as I am not fully knowledgeable of the capabilities of a UEFI system. But I do know now that it can do MBR for storage drives. For having 2 internal hard disks as 2 separate partition styles, I've never done that before, as I've never used GPT before. Its very possible it could be done, I just wasn't sure since I don't have a UEFI system to even try that
      My System SpecsSystem Spec

  6. #16

    Posts : 2,690
    Windows 3.1 > Windows 10

    UEFI supports x64 only and only GPT (removable drives not included) and supports Secure Boot

    On a UEFI system you can enable support for Legacy BIOS which will then allow for x86 and x64 with MBR partitions.. (basically disable uefi)

    MBR has a four partition /disk limit, GPT has a 128 partition /disk limit..

    Windows 8/8.1 setup using UEFI/GPT uses four partitions - so if that was a MBR structure, you're already at the mbr partition limit..

    So to overcome the mbr partition limit, the disk is converted to gpt..

    Here is a screen shoot of my PC - two internal disks / disk 0 HHD and disk 1 SSD - one USB and two ext HDD
    The two internal disks are GPT and the external disks are MBR
    Attachment 57685

    Attachment 57686
      My System SpecsSystem Spec

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Format a 2nd HDD - restore later w/out losing settings?
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