Windows 8 and 8.1 Forums

Removing Windows 8

  1. #1


    Posts : 10
    Windows 8.1

    Removing Windows 8


    I'm trying to get rid of Win8 and install Win7 in its place. I've tried booting from CD and USB. When the computer boots up it gives me the option to boot Windows Setup or Windows 8.1. When I choose Windows Setup it brings me to a black screen and nothing happens. I really have no idea what to do at this point. Win8 has been nothing, but a pain in my side since I bought my laptop. Can someone please help me through the removal of windows 8? My laptop is a Toshiba Satellite C55-A5104 if that helps. Sorry if this belongs on a Win7 forum, but I figured this forum would know more about uninstalling Win8 than a Win7 forum.

      My System SpecsSystem Spec

  2. #2


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    Have a look at this, UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Help Forums . One thing I would do during the install is delete the partition with Windows 8 on it, the EFI partition and that first small System Reserved partition. Then create a new partition in that space and install 7 to it. Windows 7 should create its own system reserved automatically. That will completely remove windows 8 and prevent you from ending up with a dual boot or messed up install. Have you backed up what you want saved to external media?

    EDIT: You may want to create your recovery media now incase you ever do want to go back to Windows 8.
      My System SpecsSystem Spec

  3. #3


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


    I'm trying to get rid of Windows 8 and install Win7 in its place.
    YES & NO, down to your UEFI/BIOS firmware setting.

    Welcome to EightForums

    As 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.
      My System SpecsSystem Spec

  4. #4


    Posts : 10
    Windows 8.1


    Tried booting from USB and DVD. but it gives an error. "Error while attempting to read boot configuration data". I couldn't find CSM or UEFI boot in my BIOS, is that what is causing the problem?
      My System SpecsSystem Spec

  5. #5


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


    Quote Originally Posted by doodalydoo View Post
    Tried booting from USB and DVD. but it gives an error. "Error while attempting to read boot configuration data". I couldn't find CSM or UEFI boot in my BIOS, is that what is causing the problem?
    YES.
      My System SpecsSystem Spec

  6. #6


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


    Downgrade Windows 8 to Windows 7

    You need to do all of the step 3 first.


    Quote Originally Posted by theog
    3) Reset BIOS to default, and reboot to BIOS make sure Secure Boot is disabled.
    Make sure CSM is ENABLED, & set to UEFI boot.
    NOTE: Check your manufacturer's uEFI BIOS manual for settings.
    Take a look at this post.
    UEFI Bootable USB Flash Drive - Create in Windows

    From Toshiba Support site.

    How to enable CSM for a Toshiba.(Satellite Pro C870, Satellite Pro L830, Satellite Pro C850, Satellite Pro R950, Portege R930, Portege Z930)

    Quote Originally Posted by Toshiba
    To downgrade from a installed Windows 8 OS to a Windows 7 OS, using a Windows 7 recovery media, follow these steps:

    1) Boot unit and press F2 to get into BIOS

    2) Go to "Security" tab and disable "Safe Boot"

    3) Go to "Advanced" tab, select "System Configuration" then change boot mode from "UEFI" to "CSM"

    4) Press F10 to save changes and exit.

    5) Boot unit from recovery media (Press F12 on bootup to boot from USB or DVD media)
      My System SpecsSystem Spec

  7. #7


    Posts : 10
    Windows 8.1


    Quote Originally Posted by theog View Post
    Downgrade Windows 8 to Windows 7

    You need to do all of the step 3 first.


    Quote Originally Posted by theog
    3) Reset BIOS to default, and reboot to BIOS make sure Secure Boot is disabled.
    Make sure CSM is ENABLED, & set to UEFI boot.
    NOTE: Check your manufacturer's uEFI BIOS manual for settings.
    Take a look at this post.
    UEFI Bootable USB Flash Drive - Create in Windows

    From Toshiba Support site.

    How to enable CSM for a Toshiba.(Satellite Pro C870, Satellite Pro L830, Satellite Pro C850, Satellite Pro R950, Portege R930, Portege Z930)

    Quote Originally Posted by Toshiba
    To downgrade from a installed Windows 8 OS to a Windows 7 OS, using a Windows 7 recovery media, follow these steps:

    1) Boot unit and press F2 to get into BIOS

    2) Go to "Security" tab and disable "Safe Boot"

    3) Go to "Advanced" tab, select "System Configuration" then change boot mode from "UEFI" to "CSM"

    4) Press F10 to save changes and exit.

    5) Boot unit from recovery media (Press F12 on bootup to boot from USB or DVD media)
    I don't have that under my System Configuration tab
      My System SpecsSystem Spec

  8. #8


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


    Toshiba UEFI/BIOS firmware.

    Click image for larger version

    Click image for larger version

    Click image for larger version
      My System SpecsSystem Spec

  9. #9


    Posts : 10
    Windows 8.1


    My Bios looks nothing like that. This is a pic of my Bios under the System Configuration tab
    Attached Thumbnails Attached Thumbnails DSCI0010.JPG  
      My System SpecsSystem Spec

  10. #10


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


    Check your UEFI/BIOS firmware manual.
      My System SpecsSystem Spec

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