Windows 8 and 8.1 Forums


Downgrade Windows 8 to Windows 7

  1. #110


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


    Quote Originally Posted by GHSDAZZ View Post

    I purchased the product key from Microsoft separately from the DVD. I have had the DVD for some time and I have many computers so I could not tell you exactly what vender I purchased the DVD from.

    Do you have any idea why I am unable to install windows7 on the GPT partition style? No matter what drive/partition I pick the “NEXT” option is not available or highlighted to click on.
    Use a Genuine Microsoft Windows 7 x64 DVD.

      My System SpecsSystem Spec

  2. #111


    Quote Originally Posted by GHSDAZZ View Post
    I followed all the steps to downgrade. Got my win7 setup to boot from UEFI USB. My win7 has all versions of win 7 both 32 and 64 bit. When I select any of the 64 bit OS under custom install I get the message “Windows cannot be installed to this disk. The selected disk is of the GPT partition style.” No matter what drive/partition I pick the NEXT option is not avalable. I’m almost there yet still stuck with Win 8 pre-installed. Help Please.





    Asus K55A win8 Pre-installed UEFI Bios rev. 405
    I too have same scenario, ASUS K55A, first tried win7 x64 cd ... could not get to select any of GPT partitions then tried win8 x64 on usb also could not select a partition to install into...

    windows cannot be installed to this disk the selected disk is of the gpt partition style
    Click image for larger version


    Quote Originally Posted by directhex@hexus.net
    Okay. The problem, FYI, is that the installer booted on the system in BIOS mode.

    BIOS can only boot from the MS-DOS partition type ("MBR").

    Your disk, for whatever reason, was partitioned using the newer GPT style. Booting GPT requires a motherboard with UEFI instead of BIOS, and to boot the Windows installer via UEFI mode not BIOS. BIOS and MBR go together; GPT and UEFI go together. For boot, anyway. All versions of 64-bit Windows, from Vista SP1 onwards, can install to GPT in UEFI mode.

    one solution is to convert GPT to MBR.... but that will wipe out all partitions and the data on them including the recovery... i wonder if what meljuga posted earlier may help....

    Quote Originally Posted by meljuga View Post

    Literally after spending hours and hours trying to figure out new stuff Microsoft introduced in Windows 8 together with new bios I first encountered with, finally I found solution to my problem.

    Solution is on this page.

    The trick was to copy EFI boot manager firmware file from Win 8 to Win 7 USB installation flowing instructions bellow after I created UEFI Bootable USB Flash Drive :



    Now you will need to copy the contents of the windows 7 install dvd to the USB with a regular copy paste from windows explorer.
    Once this is done you will need to get a copy of the EFI boot manager firmware file from a computer that has windows 64 bit installed on a UEFI system.
    This file is located in C:\Windows\Boot\EFI\bootmgfw.efi
    On your USB (Let’s assume it’s drive E look in E:\efi\microsoft\boot and copy this boot folder up one level so it sits in E:\efi\boot
    Now copy the bootmgfw.efi file from your computer which has windows installed to this new E:\efi\boot folder and rename it to bootx64.efi
    Insert the USB in the machine and turn it on and boot into the UEFI/BIOS loader and check for boot options. On the ASUS Zenbook it detected two boot options on the USB drive. One was UEFI and one was regular BIOS. I made the UEFI option the first choice and restarted the machine.
    I could now install windows to the formatted existing GPT partitions that were on the machine.

    _____________

    Important!
    Besides setting bios to disable "Secure Boot" I had to enable "launch CSM" in order to reach Win 7 installation setup.


    Might be useful to update OP for others?
    Last edited by eltranced; 16 Feb 2013 at 00:56.
      My System SpecsSystem Spec

  3. #112


    Posts : 4
    win7


    hello, I have a problem with asus k55vj. When I bought the notebook it was already downgraded to win7. so I by mistake and foolishness enabled Secure boot. and now my notebook seems like a stone. bios doesn't work, only cooler is work. what I suppose to do in this situation?
    P.S. sorry for my english)
      My System SpecsSystem Spec

  4. #113


    Posts : 1
    Windows 8


    GREAT , so great
      My System SpecsSystem Spec

  5. #114


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


    Quote Originally Posted by Dida1989 View Post
    hello, I have a problem with asus k55vj. When I bought the notebook it was already downgraded to win7. so I by mistake and foolishness enabled Secure boot. and now my notebook seems like a stone. bios doesn't work, only cooler is work. what I suppose to do in this situation?
    P.S. sorry for my english)
    Welcome to EightForums.

    DISABLE Secure Boot, there is a WARNING at the end of the tutorial, DO NOT ENABLE SECURE BOOT.
      My System SpecsSystem Spec

  6. #115


    Posts : 4
    win7


    how to disable secure boot if bios doest work?!
      My System SpecsSystem Spec

  7. #116


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


    [QUOTE=eltranced;195024]
    Quote Originally Posted by GHSDAZZ View Post
    I followed all the steps to downgrade. Got my win7

    I too have same scenario, ASUS K55A, first tried win7 x64 cd ... could not get to select any of GPT partitions then tried win8 x64 on usb also could not select a partition to install into...

    windows cannot be installed to this disk the selected disk is of the gpt partition style
    Click image for larger version

    Welcome to EightForums.

    This is a WARNING, in case you do not have a uEFI/BIOS firmware.

    Click OK, & Windows 7 will install in uEFI mode.
      My System SpecsSystem Spec

  8. #117


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


    Quote Originally Posted by theog View Post
    Quote Originally Posted by Dida1989 View Post
    hello, I have a problem with asus k55vj. When I bought the notebook it was already downgraded to win7. so I by mistake and foolishness enabled Secure boot. and now my notebook seems like a stone. bios doesn't work, only cooler is work. what I suppose to do in this situation?
    P.S. sorry for my english)
    Welcome to EightForums.

    DISABLE Secure Boot, there is a WARNING at the end of the tutorial, DO NOT ENABLE SECURE BOOT.
    Quote Originally Posted by Dida1989 View Post
    how to disable secure boot if bios doest work?!
    You ENABLED Secure Boot, therefore BIOS is working.
      My System SpecsSystem Spec

  9. #118


    Posts : 4
    win7


    may be bios working in some way but I cant see it. only cooler is working
      My System SpecsSystem Spec

  10. #119


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


    Quote Originally Posted by Dida1989 View Post
    may be bios working in some way but I cant see it. only cooler is working
    Are you tapping the BIOS key on Power on.
      My System SpecsSystem Spec

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Downgrade Windows 8 to Windows 7
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