How set up dual boot with two version of Windows 10

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  1. Posts : 4,594
    Windows 10 Pro
       #31

    My Disk Management shot is too small ????? Did you click on it ? It will enlarge it and you should have no problem seeing it.

    My Disk 0 only has 1 partition on it, not 2, the other space is called unallocated space, it is not a partition.

    Disk 0 is a solid state drive, all solid state drives and for that matter any hard drive with windows installed on it should have some unallocated space so you don`t accidentally run out of space.

    But that is a lesson for another day :)
    Attached Thumbnails Attached Thumbnails How set up dual boot with two version of Windows 10-dm1.jpg  
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  2. Posts : 1,037
    Windows 10 Pro
    Thread Starter
       #32

    Thank you very much for the help!! :) Your instructions were nothing like the instructions in the link you sent me (unless I got screwed up - which is always possible). Attached is how my DM looks now. I'm sure there is a next step (like, maybe deleting the System Reserved partition?). Also, I did enlarge your DM shot and still couldn't read it. Everything was fuzzy. But I did notice the unallocated space and mistakenly called it a partition.

    Well, another day has come (early) and I want to add some unallocated space to my Disk 0. How much should I add? And why should I add unallocated space in the first place?

    Then, will I be ready to perform a clean install of Windows 10 (after I make a partition for it)?

    Going to get some shut eye. Perhaps I'll see your response tomorrow morning?
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  3. Posts : 1,037
    Windows 10 Pro
    Thread Starter
       #33

    Forgot to ask what that 453 MB Healthy (Recovery) space was for.
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  4. Posts : 4,594
    Windows 10 Pro
       #34

    Don`t delete the System Reserved partition, leave it alone for now, it`s not important.

    The Recovery partition is just that, a recovery partition you can delete it if you want.

    Then you need unallocated space on that same drive for your second W10 install.

    Post another DM shot of Disk 0 ( just Disk 0 ) and stretch it out wide so we can see everything on it.

    I`m going to McDonald`s be right back,

    Post the picture :)
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  5. Posts : 19,518
    W11+W11 Developer Insider + Linux
       #35

    Why not install second instance of W10 on what is now D:/ drive ?
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  6. Posts : 17,838
    Windows 10
       #36

    ††† Just a reminder †††
    About posting screenshots of Disk Management.

    To offer concise help, it is often important to be able to see what Disk Management is comprised of, entirely.

    1 - always maximize the window
    2 - expand all fields
    3 - raise the grid view as high as possible, and...
    4 - if there is more to see below, screenshot it as well and stitch it together in Paint, or similar.

    How set up dual boot with two version of Windows 10-000172.png
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  7. Posts : 1,037
    Windows 10 Pro
    Thread Starter
       #37

    Attached is my DM. How much unallocated space should I create? Yes, I could put the second OS on the D: drive but I prefer to leave that drive for Data only. Besides, I have plenty of room on the primary drive to hold the second OS. Wouldn't the unallocated space work for both OSs?
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  8. Posts : 1,037
    Windows 10 Pro
    Thread Starter
       #38

    Have I lost you? I hope not because your help is invaluable to me.


    AddRAM said:
    Don`t delete the System Reserved partition, leave it alone for now, it`s not important.

    The Recovery partition is just that, a recovery partition you can delete it if you want.

    Then you need unallocated space on that same drive for your second W10 install.

    Post another DM shot of Disk 0 ( just Disk 0 ) and stretch it out wide so we can see everything on it.

    I`m going to McDonald`s be right back,

    Post the picture :)
      My Computer


  9. Posts : 4,594
    Windows 10 Pro
       #39

    Nope, just busy, can`t be here all the time. I need you to disconnect the power from any other hard drives while you`re doing this. All we need connected is Disk 0

    Now Install Partition Wizard Free Best Free Partition Manager for Windows | MiniTool Partition Free

    Now run Partition Wizard, it will give you a layout much like Disk Management. You are going to make a 4th Primary partition on Disk 0 ( We will look at deleting the System Reserved partition and the Recovery partition later )

    The 1st thing you have to do with Partition Wizard is shrink the C partition, you will then have unallocated space to create your 4th partition to clean install W10 on. I would say just split C in half.

    Just right click on Disk 0 and a drop down menu will appear, click on Move/Resize to shrink your C partition, you are gonna click at the far right end of your C partition and pull the slider to the left to shrink C. Then click Apply in the top left corner (where I have the red arrow)

    You should then see unallocated space.

    After you get that done post a new FULL Disk Management shot of Disk 0, don`t cut anything out, I need to see all of Disk 0
    Attached Thumbnails Attached Thumbnails How set up dual boot with two version of Windows 10-capture1.jpg   How set up dual boot with two version of Windows 10-capture.jpg  
    Last edited by AddRAM; 26 Jan 2017 at 00:16.
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  10. Posts : 1,037
    Windows 10 Pro
    Thread Starter
       #40

    I think I can accomplish all your instructions in the above post without any help. I will have to remove the bottom cover of my laptop/workstation to get at the data drive to disconnect it. I am familiar with Mini-Tool Partition Free. Just one question: Since my system drive is an SSD, I assume (?) it doesn't matter where I place the different partitions. If I was using a platter drive, would it matter where I placed each partition (and why?)? I'm not feeling that well so far today so I may not get it done today - we'll see later. Did you get my last response? Thank you.......
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