Windows 10: Unmountable boot volume - chkdsk /r does not solve issue

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  1.    17 Feb 2017 #1

    Unmountable boot volume - chkdsk /r does not solve issue


    Hi,
    I got an ASUS zenbook with windows 10 installed. When I turn it on it shows the BSOD error "unmountable boot volume". It keeps on re-starting forever and never display any "repair computer options".

    To try and solve I created an Windows10 image on a usb device and tried to run the repair from that. This is not working since the laptop is freezing after I press "System Restore" or "Automatic repair". The only thing that works is the command prompt option. I ran the chkdsk /r command two times and it seems to run ok (checks all files) but are not able to provide an error log afterwards. When I restart the computer it goes back to the BSOD-message and is rebooting constantly.

    Is there anything else I can try?


    Thanks,
      My ComputerSystem Spec


  2. Posts : 12,863
    Windows 10 Pro
       17 Feb 2017 #2

    Hi Erdinger,

    Do you see an option 'Startup repair' in the advanced options?
    If you do, run it 3 times with a reboot between each.
      My ComputersSystem Spec

  3.    17 Feb 2017 #3

    When I choose that option I get the message: "To use System Restore, you must specify which Windows installation to restore. Restart this computer, select an operating system, and then select System Restore"

    When I restart I can't select between any OS. Either it keeps going back to the BSOD or it keeps loading Windows from the usb stick.
      My ComputerSystem Spec


  4. Posts : 12,863
    Windows 10 Pro
       17 Feb 2017 #4

    Could you try diskpart in the command prompt please and run following commands in order
    Code:
    diskpart
    list disk
    sel disk 0
    list partition
    Post a photo of the command prompt.
      My ComputersSystem Spec

  5.    19 Feb 2017 #5

    Hi,
    A new problem occured. Now I'm not able to run the command prompt at all. I boot up from the usb with the win10 image I created from Microsoft's website and can choose Advanced Troubleshooting but when this menu opens I get the message: To use System Restore, you must specify which Windows installation to restore. Restart this computer, select an operating system, and then select System Restore" every time.

    Does it exist some other program that will allow me to run cmd from a usb ?
      My ComputerSystem Spec


  6. Posts : 12,863
    Windows 10 Pro
       19 Feb 2017 #6

    Please download an ISO from Windows 10 Recovery Tools - Bootable Rescue Disk, a Win10 Pe with certain software preinstalled that may make troubleshooting unbootable systems more reliable, and mount it on a USB.
      My ComputersSystem Spec

  7.    19 Feb 2017 #7

    I created a bootable USB with that image now and starter CMD but it has been stuck on this image for 20 minutes now.
      My ComputerSystem Spec

  8.    19 Feb 2017 #8

    Opened notepad and got this error btw.
      My ComputerSystem Spec

  9.    19 Feb 2017 #9

    Finally got the disk part to work after waiting 30 minutes. See attached image.
      My ComputerSystem Spec


  10. Posts : 12,863
    Windows 10 Pro
       19 Feb 2017 #10

    Open macrium reflect and try 'Fix Windows boot problems' option.
      My ComputersSystem Spec


 
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