Disk Management Isn't Correct


  1. Posts : 33
    Windows 10 64-bit
       #1

    Disk Management Isn't Correct


    I dual boot Win 7 & Win 10 from the same hard drive. Recently, I had to reinstall Win 10. I can no longer dual boot, as you can see in screen shot. I have no idea how to fix it as it was before the reinstalling.



    Disk Management Isn't Correct-capture.png
      My Computer


  2. Posts : 14,046
    Windows 11 Pro X64 22H2 22621.1848
       #2

    Looks like the F: drive is your Windows 7.

    From a Administrator Command prompt enter bcdboot F:\Windows /d /addlast

    /d Specifies that the existing default windows boot entry
    should be preserved.

    /addlast Specifies that the windows boot manager firmware entry
    should be added last. The default behavior is to add it first.
      My Computers


  3. Posts : 33
    Windows 10 64-bit
    Thread Starter
       #3

    Ztruker said:
    Looks like the F: drive is your Windows 7.

    From a Administrator Command prompt enter bcdboot F:\Windows /d /addlast

    /d Specifies that the existing default windows boot entry
    should be preserved.

    /addlast Specifies that the windows boot manager firmware entry
    should be added last. The default behavior is to add it first.
    Response to prompt: Failure when attempting to copy boot files.

    Hopefully, viewing diskpart results will help with a solution.

    THANK YOU VERY MUCH!!

    Disk Management Isn't Correct-capture-3.png
      My Computer


  4. Posts : 31,675
    10 Home x64 (22H2) (10 Pro on 2nd pc)
       #4

    Ztruker said:
    Looks like the F: drive is your Windows 7.
    From a Administrator Command prompt enter bcdboot F:\Windows /d /addlast ....
    Moolah said:
    Response to prompt: Failure when attempting to copy boot files...
    Your partition has a very confusing name: 'F: WIN 7 (D:)' possibly due to it being a logical partition (why?).

    It's not the F: drive, it's the D: drive, try bcdboot D:\Windows /d /addlast
      My Computers


  5. Posts : 18,432
    Windows 11 Pro
       #5

    @Bree is correct. Windows 7 is on D: drive, not F: drive, so the correct command would be:
    bcdboot D:\Windows /d /addlast
      My Computer


  6. Posts : 33
    Windows 10 64-bit
    Thread Starter
       #6

    NavyLCDR said:
    @Bree is correct. Windows 7 is on D: drive, not F: drive, so the correct command would be:
    bcdboot D:\Windows /d /addlast
    Same response as before when entering bcdboot D:\Windows /d /addlast

    It seems to me that my partitions are not configured correctly. I get even more confused when viewing the screen below.

    Disk Management Isn't Correct-capture-4.png
      My Computer


  7. Posts : 14,046
    Windows 11 Pro X64 22H2 22621.1848
       #7

    diskpart is not even showing your Win 7 partition now.

    Repeat diskpart but do a sel disk 0 then detail disk and list par.
    Post results.

    Would also be good to see the Minitool Partition Wizard free window.
      My Computers


  8. Posts : 33
    Windows 10 64-bit
    Thread Starter
       #8

    Ztruker said:
    diskpart is not even showing your Win 7 partition now.
    Repeat diskpart but do a sel disk 0 then detail disk and list par.
    Post results.
    Would also be good to see the Minitool Partition Wizard free window.
    I don't understand why reinstalling Win 10 created this mess. I have had to reinstall Windows in the past when dual booting & never had any problems. Perhaps Win 10 crashing the way it did caused these problems.

    Disk Management Isn't Correct-capture-5.png


    Disk Management Isn't Correct-capture-6.png
      My Computer


  9. Posts : 14,046
    Windows 11 Pro X64 22H2 22621.1848
       #9

    Looks like Partition 0 is your Windows 7:

    Disk Management Isn't Correct-image.png

    From diskpart, sel par 0 then assign letter=x (x is whatever letter you want).
    Exit diskpart then use bcdboot X:\Windows /d /addlast to add it to the boot menu and you should be set. Change X: to whatever letter you assigned.
      My Computers


 

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