Windows 10: dual boot - boot loader not always loaded

Discus and support dual boot - boot loader not always loaded in Windows 10 Installation and Upgrade to solve the problem; Hello! I got a problem with my Windows 10 / Windows 7 dual boot system. The boot loader does not come up every time. It depends on what I did... Discussion in 'Windows 10 Installation and Upgrade' started by dormi98, Dec 18, 2016.

  1. DORMI98
    dormi98 Win User

    dual boot - boot loader not always loaded


    Hello!

    I got a problem with my Windows 10 / Windows 7 dual boot system.

    The boot loader does not come up every time. It depends on what I did before.
    Shut down Windows 10 -> boot loader does not show up on next boot and Windows 10 boots up.
    Reboot Windows 10 -> boot loader shows up and I can choose which OS to start.
    Shut down Windows 7 -> boot loader shows up and I can choose which OS to start.
    Reboot Windows 7 -> boot loader shows up and I can choose which OS to start.

    Of course I want the boot loader to show up every time.

    What I did:
    Windows 10 was preinstalled. Then I reduced the partition size of Windows 10 and created another primary partition for Windows 7. Windows 7 was then installed in this new partition.

    Does anyone know what causes this behavior?

    Thanks in advance

    :)
     
    dormi98, Dec 18, 2016
    #1
  2. NEOREDSTONE
    Neoredstone Win User

    Forced Boot Order

    Hello, I have recently enconutered a problem with the latest windows update, that caused my dual boot not to boot properly. It loads windows all of the time, even after reinstallation of the dual boot. The dual boot was working before the update, and the
    only way that you can access the other Os is by manually switching to it with f12.

    Also the second operating system does not appear on Msconfig.

    So just to clarify, it loads the windows boot loader instead of the grub boot loader.

    Specs

    Toshiba Satellite

    Windows 10 Home fully updated

    Dual boot: Ubuntu Desktop 15.10 fully updated

    Default grub bootloader

    Default windows bootloader
     
    Neoredstone, Dec 18, 2016
    #2
  3. GREG CARMACK - WINDOWS MVP
    Greg Carmack - Windows MVP Win User
    Windows 10 / Ubuntu dual boot update/reset problem (error code : 0x800703ED)

    Hi again, Arthur.

    Yes, manually load the BCD which should work.

    Then reassert the Windows Boot Loader, try adding Linux to a Dual Boot.
     
    Greg Carmack - Windows MVP, Dec 18, 2016
    #3
  4. NAVYLCDR
    NavyLCDR New Member

    dual boot - boot loader not always loaded

    NavyLCDR, Dec 19, 2016
    #4
  5. DORMI98
    dormi98 Win User
    Many Thanks - That did it.
    It can be very easy sometimes.

    Problem solved
     
    dormi98, Dec 20, 2016
    #5
  6. NAVYLCDR
    NavyLCDR New Member
    Yep.... just need to know someone who has the easy answer dual boot - boot loader not always loaded :)
     
    NavyLCDR, Apr 4, 2018
    #6
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dual boot - boot loader not always loaded

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