Windows 10: Need help to PROPERLY install dual boot: Windows 10 & Windows 10

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  1.    27 Nov 2017 #61

    I think I messed up. I got as far as creating enough unallocated space to install my old (working) version of Windows10 (this post is from my iPad). I have a fresh image of the old Windows 10 but the image is of the entire Disk 0. Can I just install the old version of W10 from this image (I have the paid version of Macrium Reflect)? If not, please tell me what to do. If I have to, I can always start over (ugh!). Just as a reminder, I want to be able to dual boot while I add my apps into the clean install - then delete the old version and just be left with the clean install version.
    Last edited by Nisko; 27 Nov 2017 at 10:48.
      My ComputerSystem Spec

  2.    27 Nov 2017 #62

    In Macrium Reflect, drag and drop the old Windows partion only from the backup image file to the unallocated space on the target hard drive.
      My ComputerSystem Spec

  3.    27 Nov 2017 #63

    OK, the image doesn't show partitions. How do I display the image broken up into partitions? I clicked on "Browse Image" and a dialog box came up showing each partition. It's telling me to click a checkbox for the partition I want to explore and associate a drive letter in explorer. I'm doing this inside @Kyhi PE environment and I'm not familiar with how to get around in it. How do I find explorer and assign a drive letter?
      My ComputerSystem Spec

  4.    27 Nov 2017 #64

    I'm not at a computer now, but it is from the restore menu, you will select the image file you want to restore, not browse. Then select the target drive. Then in the upper half of the window you should see the partitions contained in the image file and in the lower half see the existing partitions on the target drive.

    Then you will drag and drop the old Windows partition only from the upper half to the empty space on the drive in the lower half.
      My ComputerSystem Spec

  5.    27 Nov 2017 #65

    That's underway right now. Thanks - I should have known to do that intuitively. When the restore is complete, is there anything else I have to do to be able to dual boot?
      My ComputerSystem Spec

  6.    27 Nov 2017 #66

    Ok, the installation is complete - but the option to dual boot is not there. It only boots into the clean install.
      My ComputerSystem Spec

  7.    27 Nov 2017 #67

    Nisko said: View Post
    Ok, the installation is complete - but the option to dual boot is not there. It only boots into the clean install.
    Your old Windows partition should have a drive letter. Let's say it is E:\. Change the drive letter below in the FIRST command to match what your old Windows partition drive letter actually is. In a Command Prompt (Admin) or "Run As Administrator" Command Prompt, enter the two commands below, change the drive letter in the FIRST command only to match what your old Windows partition got assigned:

    bcdboot E:\Windows
    bcdboot C:\Windows
    exit

    Reboot. Your new clean Windows install should be on top and default. The old Windows partition should be the bottom entry (after you reboot - I know the commands above are reversed!). Then open a Command Prompt (Admin) again and run:

    bcdedit

    Post the results here and I'll show you how to modify the description(s) to something meaningful.
      My ComputerSystem Spec

  8.    27 Nov 2017 #68

    @NavyLCDR Results of bcdedit BTW, I now have a working dual boot. Thank you again!!!
    Attached Thumbnails Attached Thumbnails 11.27.2017 BCDEDIT.jpg  
      My ComputerSystem Spec

  9.    27 Nov 2017 #69

    So, on your screenshot it looks like you are booted into the old Windows 10 and the new Windows 10 is the default? The way you change the description to something more meaningful would be to use the identifier field in the Windows Boot Loader Entries. So let's say the {default} entry is your new Windows 10 and {current} is your old Windows 10. You could do:

    bcdedit /set {current} description "Windows 10 Old"

    Then you can do just bcdedit by itself to see the change that was made.
      My ComputerSystem Spec

  10.    27 Nov 2017 #70

    bcdedit /set {current} description "Windows 10 Old"

    Having trouble following the syntax. Especially {current} description. What do I substitute for that part of the command?
      My ComputerSystem Spec


 
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