Windows 10: Dual booting windows with existing installation

Discus and support Dual booting windows with existing installation in Windows 10 Installation and Upgrade to solve the problem; Hi all, For various (annoying) reasons, I would like to dual boot two windows installations on my laptop. Currently, Windows 10 Enterprise is... Discussion in 'Windows 10 Installation and Upgrade' started by countchocula, Jan 14, 2021 at 4:57 AM.

  1. Dual booting windows with existing installation


    Hi all,

    For various (annoying) reasons, I would like to dual boot two windows installations on my laptop. Currently, Windows 10 Enterprise is installed. Would it be possible to create a new partition from which I could boot a new installation of windows 10 for education? I would then like to boot by default to the new installation (education), but would like to occassionally boot into the original installation of windows 10 enterprise...

    I'd like to allocate as little space to the enterprise installation as possible. My C drive is 1TB.

    thanks in advance...

    :)
     
    countchocula, Jan 14, 2021 at 4:57 AM
    #1

  2. windows xp installation and dual core am

    could someone please list the steps they follow to install windows with a dual core processor and windows xp service pack to. I'm reletively new to amd dual core and i feel i'm missing a step. All help will be appreciated. thanx
     
    exodusprime1337, Jan 14, 2021 at 4:59 AM
    #2
  3. topgundcp Win User
    Dual Booting 2 x Windows 10 OS Drives (Existing Installs)


    It is uneccessary to do all of the above.
    1. Boot up Windows 10
    2. Open Disk Management and take a note of the drive letter of the other Windows 10
    3. Open Admin Command Prompt and type: bcdboot X:\Windows where X is the drive letter noted in step 2
    4. Reboot, you should have a dual boot menu.
     
  4. topgundcp Win User

    Dual booting windows with existing installation

    Dual Booting with Windows 8.1


    The procedure below will allow you to boot Windows separately or in dual boot configuration.
    Here's what I recommend to do:
    1. Disconnect the drive containing Windows 8.1
    2. Install Windows 10 with one drive connected.
    3. After step 2, reconnect the drive containing Windows 8.1
    4. Boot up Windows 8.1. Open disk management and take a note of the drive letter of Windows 10 OS.
      NOTE: if you boot up Windows 10, then take a note of Windows 8.1 drive letter
    5. Open Admin command prompt and type: bcdboot X:\windows where X: is the drive letter of Windows 10 (Windows 8.1 if you boot from Windows 10 in step 4)
    6. Reboot the PC. You should have a dual boot screen.

    NOTE: To break off the dual boot setting, Win+R->msconfig->boot and delete the none default entry on the list.
     
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Dual booting windows with existing installation

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