Windows 8 and 8.1 Forums


Dualboot and trying to install win7 over win8 MBR - GPT

  1. #1


    Finland, Espoo
    Posts : 13
    Ubuntu x64, Win8 pro x64

    Dualboot and trying to install win7 over win8 MBR - GPT


    So after building a new computer, i had the problem of win8 drivers with the new mobo... So i bought a new
    win7 install disk(it was cheaper and i want to try 7) And now when i try to install the win7 with the disc, it tells me that the disk has a mbr partition table and that windows can only be installed to gbt and edi or something.(ask for details if needed) and i have no idea how do i make that hard drive a gbt hard drive instead of mbr. So im asking for help here. So i can't access windows but i can access my linux (i have the dualboot) So any of you know how to format and make a gbt instead of mbr with like a usb stick? I think there is a way but im asking here just to be sure. Also if someone could tell me that why is this error happening to me because i had win8 running on that hard drive. And before that i had windows vista. thanks!

      My System SpecsSystem Spec

  2. #2


    Finland, Espoo
    Posts : 13
    Ubuntu x64, Win8 pro x64


    Im sorry for my bad english but i hope you can understand(i wrote that in a bit of hurry)
      My System SpecsSystem Spec

  3. #3


    Posts : 879
    Windows 10


    Quote Originally Posted by N3cR0a View Post
    And now when i try to install the win7 with the disc, it tells me that the disk has a mbr partition table and that windows can only be installed to gbt
    Instruction in the English language -> link

    Instruction in the Finnish language -> link
      My System SpecsSystem Spec

  4. #4


    Finland, Espoo
    Posts : 13
    Ubuntu x64, Win8 pro x64


    Quote Originally Posted by genet View Post
    Quote Originally Posted by N3cR0a View Post
    And now when i try to install the win7 with the disc, it tells me that the disk has a mbr partition table and that windows can only be installed to gbt
    Instruction in the English language -> link

    Instruction in the Finnish language -> link
    Finnish: Hyvä että on suomalaisia jotka tietää näistä jutuista pyörimässä näillä foorumeilla, KIITOS!

    English: It is good that there is people with different languages on these forums, it helps it rolling THANKS!
      My System SpecsSystem Spec

  5. #5


    Posts : 879
    Windows 10


    You are welcome.

    Mukava kuulla, että ohjeistani oli apua.
      My System SpecsSystem Spec

Dualboot and trying to install win7 over win8 MBR - GPT
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