Issues downgrading from 8 to 7


  1. onlinegamesnz
    Posts : 63
    Windows 7 home
       New #1

    Issues downgrading from 8 to 7


    Hey guys, so ive run into an issue which i thought should be rather simple. That is downgrading from windows 8 to 7. Im not up to scratch with this UEFI stiff.

    I am attempting to install windows vista instead of windows 8. Am I'm getting the error that i cannot install windows on the disk when its GPK disk or something.

    I read that the install MUST be a 64bit install of windows and i have disable UEFI and set it to legacy boot but then the computer does not detect the bootable media, be it usb or cd.

    My main question is, do i need to create UEFI compatible boot media or does this not matter?

    Any help much appreciated!

    Running a Sony Vaio with a assist button on it
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  3. theog
    Posts : 11,408
    ME/XP/Vista/Win7
       New #2

    Is this a OEM manufacturer's PC with Pre-installed Windows 8?

    1) Downgrade to Windows 7.
    Downgrade Windows 8 to Windows 7
    Warning you must have the UEFI/BIOS firmware setting in Step Three set.

    Make sure you read the NOTE at Step three.

    2) If Using a USB Pen drive on a PC with a UEFI BIOS.
    USB Pen drive need to be formatted to FAT32 as in
    UEFI Bootable USB Flash Drive - Create in Windows
    Take note of Step 11 for Windows 7.
    Also you will need to use a USB 2.0 port, as there are no USB 3.0 drivers in Windows 7.


    You will need to buy Windows 7.
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  4. gregrocker
    Posts : 50,642
       New #3

    Watch this video to understand better UEFI BIOS vs. Legacy BIOS - YouTube.

    If you want UEFI install then follow the extra steps in UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Forums.

    If you want to Bypass UEFI to Install WIn7 this has resolved all problems so far with UEFI installs.
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