BOOTMGR is Missing

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  1. Posts : 3
    Windows 10
       #1

    BOOTMGR is Missing


    Hi,

    Having some issues with a desktop upgraded to Windows 10 from Windows 7 and was hoping someone might be able to help. The PC was upgraded last Friday with no issues, and has been used and rebooted several times since then, again with no issues encountered. Last night I found it had rebooted itself and was displaying a BOOTMGR IS MISSING error. Rebooted and got the same error again.

    I went in to the BIOS to check the boot order, and found that my Primary hard drive was no longer listed and was not available for selection, however I was able to Override and force it to boot in to my Primary drive, so the Windows install is still good and it isn't a bad cable.

    On booting in to Windows I ran Chkdsk and found no errors on the drive. I used Advanced Startup to boot in to the Recovery Environment, and tried Startup Repair. Startup Repair could not fix the problem. Thanks, Startup Repair.
    Booted to the Command Line and tried bootrec.exe /scanos and it did not identify a Windows installation on the Primary hard drive.

    Used Override to boot in to Windows again and had a look at Disk Management and this is where I get out of my depth:
    BOOTMGR is Missing-diskmanagement.png
    I would have assumed that the System Reserved partition should hold the Boot records, and the main C:\ partition should be the Active one but that doesn't seem to be the case, and I haven't changed anything.

    I do have a backup of all my data on an external drive so I can do a clean install if required but am hoping there is a simple fix - any advice gratefully received!
      My Computer

  2. topgundcp's Avatar
    Posts : 2,782
    Linux Mint 20.1 Win10Prox64
       #2

    Download:
    Windows 10 64 bit: Rescue6.1.1081X64.iso - Google Drive
    Windows 10 32 bit: Rescue6.1.871X86.iso - Google Drive

    Use Rufus - Create bootable USB to create a bootable USB.

    Boot up from the USB and on the left panel, click on "Fix Windows Boot Problem"
    Last edited by topgundcp; 09 Feb 2016 at 15:42.
      My Computer

  3. Kyhi's Avatar
    Posts : 3,706
    Windows 3.1 to Windows 10
       #3

    What is on drive D:\ ??

    as you have two active partitions - when the system reserved should be the active one..
      My Computer


  4. Posts : 3
    Windows 10
    Thread Starter
       #4

    topgundcp said:
    Download:
    Windows 10 64 bit: Rescue6.1.871X64.iso - Google Drive
    Windows 10 32 bit: Rescue6.1.871X86.iso - Google Drive


    Use Rufus - Create bootable USB to create a bootable USB.


    Boot up from the USB and on the left panel, click on "Fix Windows Boot Problem"
    Thanks topgundcp, will try that later at home.


    Kyhi said:
    What is on drive D:\ ??


    as you have two active partitions - when the system reserved should be the active one..
    D:\ is just a spare hard drive with some data on. System Reserved is the Active partition on C:\ - does each drive not have a single Active partition?
      My Computer

  5. topgundcp's Avatar
    Posts : 2,782
    Linux Mint 20.1 Win10Prox64
       #5

    Kyhi: Good catch.
    D: Should be marked "inactive"
    From Admin command prompt:
    1. diskpart
    2. select disk 1
    3. select par 1
    4. inactive
    5. exit
      My Computer


  6. Posts : 3
    Windows 10
    Thread Starter
       #6

    Marked D:\ as inactive and used the recovery software as described by topgundcp - all fixed. Thanks folks!
      My Computer


  7. Kyhi's Avatar
    Posts : 3,706
    Windows 3.1 to Windows 10
       #7

    Very Good...
      My Computer


  8. Posts : 3
    Windows10
       #8

    topgundcp said:
    Download:
    Windows 10 64 bit: Rescue6.1.871X64.iso - Google Drive
    Windows 10 32 bit: Rescue6.1.871X86.iso - Google Drive

    Use Rufus - Create bootable USB to create a bootable USB.

    Boot up from the USB and on the left panel, click on "Fix Windows Boot Problem"
    Please update link for 64 bit
      My Computer


  9. Posts : 3
    Windows10
       #9

    topgundcp said:
    Download:
    Windows 10 64 bit: Rescue6.1.871X64.iso - Google Drive
    Windows 10 32 bit: Rescue6.1.871X86.iso - Google Drive

    Use Rufus - Create bootable USB to create a bootable USB.

    Boot up from the USB and on the left panel, click on "Fix Windows Boot Problem"
    Could you update file for 64 bit?
      My Computer

  10. topgundcp's Avatar
    Posts : 2,782
    Linux Mint 20.1 Win10Prox64
       #10

    Here's a new version 6.1.1081:
    Rescue6.1.1081X64.iso - Google Drive
    Last edited by topgundcp; 09 Feb 2016 at 17:12.
      My Computer


 
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