Windows 8 and 8.1 Forums


Can i boot an OS not listed in the windows boot manager?

  1. #1


    Posts : 9
    Windows 8.1

    Can i boot an OS not listed in the windows boot manager?


    Yesterday, I was trying to boot the Windows 10 prerelease from an iso on my hard drive using EasyBCD. It failed to boot and i made the careless mistake of removing my main os (Windows 8.1) instead of 10 from the boot manager on windows. i'm pretty sure that windows 8 remains on my hard drive it's just not showing in my boot manager, and with that am curious if there is a way to boot windows 8.1 even though its not showing in boot manager. Thanks.

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  2. #2


    Posts : 879
    Windows 10


    edit:

    How to use the BCDboot command in Windows 8/10 -> link
    Last edited by genet; 19 Jul 2015 at 07:02.
      My System SpecsSystem Spec

  3. #3


    Posts : 9
    Windows 8.1


    I can access the command prompt from the recovery options. Can I do this without using any installation media?
    Last edited by Hansausage; 06 Oct 2014 at 07:18. Reason: Not finished writingn
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  4. #4


    Posts : 879
    Windows 10


    Quote Originally Posted by Hansausage View Post
    I can access the command prompt from the recovery options. Can I do this without using any installation media?
    Yes.

    diskpart
    list volume Note: Note the volume letter where the Windows 8 is installed.
    exit

    bcdboot X:\windows Note: Replace "X" with the volume letter of the Windows 8 partition.

    edit:

    Click image for larger version
    Last edited by genet; 06 Oct 2014 at 12:51.
      My System SpecsSystem Spec

  5. #5


    Posts : 9
    Windows 8.1


    Thanks! I'll try this when I get home tonight.
      My System SpecsSystem Spec

  6. #6


    N. Calif
    Posts : 2,595
    W10 Pro (desktop), W10 (laptop), W10 Pro (tablet), W10 (laptop)


    Hope you are successful at getting your Win 8.1 added back to the boot menu. I'm sure that is the solution you are looking for.

    However, to answer your original question of "Can i boot an OS not listed in the windows boot manager?" the answer is, yes. You should be able to bring up the Boot Options dialog of your motherboard and select which drive to boot from just as if you wanted to boot from a CD or USB drive.
      My System SpecsSystem Spec

  7. #7


    Posts : 9
    Windows 8.1


    Thanks, everything's running fine now
      My System SpecsSystem Spec

Can i boot an OS not listed in the windows boot manager?
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