Windows 8 and 8.1 Forums

Dual boot

  1. #1

    Dual boot


    At times I used F8 at boot to choose an O/S...

    Win 7 on drive 0
    Win 8 on drive 1

    You got whatever you chose. Or, if you simply rebooted, the DOS-
    type POST screen offered a choice of either. If you did nothing the
    default would boot automatically. There was never a DOUBLE boot.

    After install on Win 8.1 - with Win 8 the default boot drive - 8.1
    boots even when the W7 drive is selected on the F8 POST screen.

    Then W8.1 presents its own boot menu, where W7 can be booted.
    But first it must reboot a second time. Unnecessary effort.

    Is there an safe way of getting the PC to get rid of the unwanted Win 8.1
    boot menu - allowing the POST method to work as it did in the past?

    Thanks

      My System SpecsSystem Spec

  2. #2


    Posts : 5,360
    7/8/ubuntu/Linux Deepin


    The blue kiddie block things are for those who are saddled with the limitations of a touch only device.

    To get a menu suitable for multibooting, in an Admin command prompt:

    BCDedit /set {default} bootmenupolicy legacy

    Startup Options - Enable or Disable in Windows 8
    Last edited by Brink; 28 Jun 2013 at 23:40. Reason: added tutorial link for more info
      My System SpecsSystem Spec

  3. #3


    Quote Originally Posted by SIW2 View Post
    The blue kiddie block things are for those who are saddled with the limitations of a touch only device.

    To get a menu suitable for multibooting, in an Admin command prompt:

    BCDedit /set {default} bootmenupolicy legacy

    Startup Options - Enable or Disable in Windows 8
    Sounds promising, but please be a bit more specific on the precise command line.

    Using Windows Power Shell (admin) I got the following response with your command line verbatim...
    "The SET command specified is not valid; the parameter is incorrect."

    When I substituted "Windows 8.1. preview" (no quotes) in the bracketed area, and removed the brackets, I got...
    "The element data type is not recognized or does not apply to the specified entry; element not found."

    Perhaps I should have instead inserted "C:\Windows" which is Win 8.1 - the default - when that O/S is running.

    The two O/S in the msconfig|boot menu are the one mentioned above (drive 1), and "Windows 7 Ultimate" (drive 0).

    Also, please mention how the command can be reversed, should I require same. Again, thanks.
      My System SpecsSystem Spec

  4. #4


    Sloe Deth, Californicatia
    Posts : 3,908
    Windows 8 Pro with Media Center/Windows 7


    Type it in exactly as SIW2 posted. From an Elevated Command Prompt,

    BCDedit /set {default} bootmenupolicy legacy

    To set it back, just click the link to the tutorial, which explains in detail everything ya need to know. Just make sure you put {} rather than () where it says "default"
      My System SpecsSystem Spec

  5. #5


    Quote Originally Posted by XweAponX View Post
    Type it in exactly as SIW2 posted. From an Elevated Command Prompt
    I had done just that - moments before your post - and it succeeded. Apparently I either typed it incorrectly at the Power Shell prompt, or it doesn't accept it.

    In any case, a big thanks to you both.
      My System SpecsSystem Spec

  6. #6


    Sloe Deth, Californicatia
    Posts : 3,908
    Windows 8 Pro with Media Center/Windows 7


    Yah the first time I tried it, I misread the {} as () and it failed.
      My System SpecsSystem Spec

  7. #7


    Quote Originally Posted by XweAponX View Post
    Yah the first time I tried it, I misread the {} as () and it failed.
    Except, I actually pasted it. (Or so I thought.) ^_^ Whatever succeeds!
      My System SpecsSystem Spec

  8. #8


    Sloe Deth, Californicatia
    Posts : 3,908
    Windows 8 Pro with Media Center/Windows 7


    Did you get an error that said the Boot Volume Data store could not be opened? You have to run CMD as ADMIN, which can be pulled up by hitting Winkey+X
      My System SpecsSystem Spec

  9. #9


    Quote Originally Posted by XweAponX View Post
    Did you get an error that said the Boot Volume Data store could not be opened? You have to run CMD as ADMIN, which can be pulled up by hitting Winkey+X
    No. In Win 8.1. Winkey+X brings up the AD Power Shell. When I tried the command it replied...
    "The SET command specified is not valid; the parameter is incorrect."

    There's a way to swap the CMD and AD CMD for the Power Shell, but other routes to CMD exist.
    FUN with split personalities of W8 and 8.1. ^_^
      My System SpecsSystem Spec

  10. #10


    Sloe Deth, Californicatia
    Posts : 3,908
    Windows 8 Pro with Media Center/Windows 7


    Ok, well then it was just not input quite right. I copied it from his original post and pasted it into CMD, and it gave me that Data Store error, after I changed to an Admin CMD, then it worked.
      My System SpecsSystem Spec

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