Windows 7 x64 "Setup unable to create system partition"


  1. GPGuy
    Posts : 10
    Windows 7 Professional x64
       New #1

    Windows 7 x64 "Setup unable to create system partition"


    Hey everyone,
    I've searched quite extensively and followed quite a few guides on how to install windows 7 with UEFI.
    I've got a Dell latitude E6540 laptop with a new WD 500GB blue HD. Every time I try to install Windows 7 Pro x64 I get the:
    "Setup was unable to create a new system partition or locate an existing system partition. See the Setup log files for more information."
    I've followed the following threads with no avail:
    Setup was unable to create a new system partition
    SSD / HDD : Optimize for Windows Reinstallation
    UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with
    Any help with this would be very appreciated.
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  3. AddRAM
    Posts : 13,576
    Windows 10 Pro x64
       New #2

    the drive has to be GPT and not MBR, and this still might not work.

    Windows 7 is not worth the effort of UEFI, just go Legacy boot and MBR.
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  4. GPGuy
    Posts : 10
    Windows 7 Professional x64
    Thread Starter
       New #3

    I'm pretty sure i tried that, but i'll give it one more go
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  6. AddRAM
    Posts : 13,576
    Windows 10 Pro x64
       New #4

    If you`ve tried Legacy boot and you still get that message then the drive could still be initialized as GPT, (as the drive is new) it has to be converted to MBR

    Convert GPT Disk to MBR Disk
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  7. GPGuy
    Posts : 10
    Windows 7 Professional x64
    Thread Starter
       New #5

    I got it figured. The UEFI boot to CD/DVD was emulated legacy, which would not allow the installer to see the HD as a boot device. Turn off legacy emulation while in UEFI? absolutely no way to boot from CD/DVD... so back to full legacy... now installing
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