If WIndows 7 supports GPT, why can't I install the OS on GPT?

Discussion in 'Windows 7 Installation' started by Marcus S, May 12, 2009.

  1. Saltgrass

    Saltgrass Excellent Member
    Microsoft Community Contributor

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    Since this thread is a couple of years old, some things have changed since the OP asked the question.

    But to use a GPT drive to boot into Windows 7, you must use Windows 7 x64 and have a UEFI enabled bios and install as UEFI. This only refers to the boot drive and not another drive installed in the system.
     
    catilley1092 and Elmer like this.
  2. tzachidar

    tzachidar New Member

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    Thank you very much. This has sovled my problem!!!!
     
  3. tunilove

    tunilove New Member

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    hi when do disk part option after select disk 1 with 698 gb GPT and i wnat to convert to mbr i get error :

    any help
     
  4. Jimmydafreak

    Jimmydafreak New Member

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    Unfortunately this has not worked for me. I have a brand new 4 TB WD Caviar Black hard drive that I'm attempting to install on a UEFI-complaint MB. I installed the hard drive in a another machine and formatted it NTSF/GPT. When I attempt to install Windows 7 (64-Bit) on this drive, I get the following error message:

    "Windows cannot be installed to this disk. The selected disk is of the GPT partition style."
     
  5. catilley1092

    catilley1092 Extraordinary Member

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    The trick is, the 128MB Microsoft Reserved Partition (commonly named MRP) has to be there. It is unseen in the utility "Create and format disk partitions", but is seen by common partitioning tools. On computers that ships with Windows 8, it's also there.

    Here's a somewhat detailed MS TechNet provided tutorial as to how to do it. Supporting links are provided in the tutorial & the OS is Windows 7 Pro x64.

    http://blogs.technet.com/b/askcore/archive/2011/05/31/installing-windows-7-on-uefi-based-computer.aspx

    Dig in!

    Cat
     
  6. Jimmydafreak

    Jimmydafreak New Member

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    Thanks for the response Cat. I found the solution here:

    How to Create a Bootable UEFI USB Flash Drive for Installing Windows 7, Windows 8, or Windows 8.1

    http://www.eightforums.com/tutorials/15458-uefi-bootable-usb-flash-drive-create-windows.html

    The problem I'm having now is that I can't activate Windows. Trying to figure out a way around it.
     

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