Windows 8 and 8.1 Forums


How to convert seagate 3tb from dynamic to basic?

  1. #1


    Posts : 8
    Windows 8

    How to convert seagate 3tb from dynamic to basic?


    Hi everyone, I bought internal seagate barracuda 3tb, and since I installed it inside my PC, I went to disk management and saw this

    Click image for larger version


    then I made it in one partition and converted it from dynamic and MBR to basic and GPT, then I stored files in it,
    the problem is, after I installed windows 8 over windows 7 -which is in a separate drive not the seagate- I faced the same problem in the image above, windows couldn't dedicate the hard drive because it's dynamic and MBR. it has my files now. I want to convert it to basic and GPT without losing data because they're very important.
    could you please help me?

    Click image for larger version

    Click image for larger version

      My System SpecsSystem Spec

  2. #2


    Posts : 5,592
    ME, XP,Vista,Win7,Win8,Win8.1


    Always best to backup first.

    Using Paragon 11.

    Click image for larger version

    Click image for larger version
      My System SpecsSystem Spec

  3. #3


    Posts : 1,121
    Windows 8.1 x64


    I guess I would have a couple of questions. Do you have the Professional version of Paragon?

    Your post may be a little misleading, but you need to convert a Dynamic MBR drive into a Basic GPT drive?

    Do you know why the drive shows as a "Spanned Volume"? Could it have been part of an RAID array, or is it related to using a large drive...

    Do you have a place you can put the 2 TBs of Data you have on the drive? And I do not know how much Sky Drive will hold..
      My System SpecsSystem Spec

  4. #4


    Posts : 8
    Windows 8


    Yes I used a professional version of Paragon, the options to convert to basic and GPT were frozen!.
    Yes I want to convert to basic and GPT or whatever would make my hard drive work again without data loss.
    The hard drive wasn't a part of RAID array.

    I think the problem is that windows doesn't support hard drives more than 2TB by default. Although I formated it since I bought it and converted it to basic GPT, but after I upgraded to windows 8 the same problem came up again!
      My System SpecsSystem Spec

  5. #5


    Posts : 1,121
    Windows 8.1 x64


    Again. I do not use that software and have not done this procedure, so I cannot guarantee your data. If you see any warnings about data loss, you might want to stop. I assume this will be dangerous. If the data is important, you may want to wait until you can back it up.

    But the Paragon software should have an option to convert a Dynamic MBR to Basic MBR. Do that step and make sure the process completes, and you might even want to reboot between steps. Then convert the basic MB to basic GPT.

    If these steps are also frozen as you indicate, the Spanned Drive notation might be important. If the drive is configured as a RAID drive, you may have to use the Intel Rapid Response utility, or the RAID OpRom during boot to remove that configuration. But hopefully this will not be involved.

    Good Luck...
      My System SpecsSystem Spec

  6. #6


    Posts : 8
    Windows 8


    Thank you, I'll do as you said
      My System SpecsSystem Spec

How to convert seagate 3tb from dynamic to basic?
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