Windows 8 and 8.1 Forums


Windows 7 Dual boot on Acer S3-391 Ultra Book

  1. #11


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


    Downgrade Windows 8 to Windows 7

    Quote Originally Posted by theog
    3) Reset BIOS to default, and reboot to BIOS make sure Secure Boot is disabled.
    NOTE: Check your manufacturer's uEFI/BIOS firmware manual for settings.
    Make sure CSM is ENABLED, & set to UEFI boot.
    Are you booting the DVD in UEFI mode?

    Click image for larger version

      My System SpecsSystem Spec

  2. #12


    i am using a usb flash drive
      My System SpecsSystem Spec

  3. #13


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


    Are you booting the USB Drive & pluged in to a USB 2.0 port in UEFI mode? (As screenshot above)
      My System SpecsSystem Spec

  4. #14


    Yes it starts to load windows the freezes
      My System SpecsSystem Spec

  5. #15


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


    Try with the Windows 7 x64 DVD.
      My System SpecsSystem Spec

  6. #16


    I would but I don't have a DVD or CD drive
      My System SpecsSystem Spec

  7. #17


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


    Quote Originally Posted by theog View Post
    Welcome to EightForums.

    S3-391 | Product Model
    With Windows 8 Pre-installed.

    Follow Step one to five in this tutorial:
    Downgrade Windows 8 to Windows 7
    Warning ,you must have the uEFI/BIOS firmware settings in Step Three set.
    Also take note of the note about Dual booting.

    Than follow this tutorial: (installing in uEFI mode.)
    Dual Boot Installation - Windows 8 and Windows 7 or Vista



    You will need to buy a Windows 7 license, as you can not tranfer the Dell OEM license to your new PC.

    If Using a USB Pendrive on a PC with a uEFI BIOS.
    USB Pendrive need to be formated to FAT32 as in
    UEFI Bootable USB Flash Drive - Create in Windows
    Take note of Step 11 for Windows 7.
    Quote Originally Posted by theog View Post
    Downgrade Windows 8 to Windows 7

    Quote Originally Posted by theog
    3) Reset BIOS to default, and reboot to BIOS make sure Secure Boot is disabled.
    NOTE: Check your manufacturer's uEFI/BIOS firmware manual for settings.
    Make sure CSM is ENABLED, & set to UEFI boot.
    Are you booting the DVD in UEFI mode?

    Click image for larger version
    Make sure you are doing, Work down this list

    1) Not setting BIOS.

    2) Not doing Step 11

    3) Not booting in UEFI mode.

    4) Not using a USB 2.0 port.

    5) Not using Windows 7 x64.
    Last edited by theog; 17 Feb 2013 at 07:20.
      My System SpecsSystem Spec

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Windows 7 Dual boot on Acer S3-391 Ultra Book
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