Windows 10: Computer crashed and wont restart

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  1. Posts : 20
    Microsoft Windows 10 Home 64-bit 10586 Multiprocessor Free
       07 Feb 2016 #1

    Computer crashed and wont restart


    My Lenovo PC suddenly shut down today and when I restarted it I got a BSOD with a 'bad pool header' message. I did eventually restart but soon shut down again with a 'k mode exception not handled' message. Now when I restart I get a blue page 'RECOVERY Your computer could not start properly. A required device isn't connected or can't be accessed. Error: 0xc0000225.'

    I have a windows 10 system repair disk but when I try and boot from it I get 'non system disk or disk error'.

    I recently (2 weeks ago) replaced the hard drive because the old one was showing SMART errors. I cloned the old disk to an identical disk and it seemed to be going fine until today.

    Not sure quite what to do next.
      My ComputerSystem Spec

  2.    07 Feb 2016 #2

    Boot from a Windows 10 Recovery Media...


    Trouble Shoot -> Advanced Options -> Command Prompt

    CMD> bootrec /scanos
    CMD> bootrec /rebuildbcd
    CMD> bootrec /fixmbr
    CMD> bootrec /fixboot



    Reboot.
    Last edited by D3LL; 08 Feb 2016 at 04:33.
      My ComputerSystem Spec


  3. Posts : 20
    Microsoft Windows 10 Home 64-bit 10586 Multiprocessor Free
    Thread Starter
       07 Feb 2016 #3

    I don't have a windows 8 recovery disk. Not sure how to get one. I do have my old hard drive (which is still working) and a SATA-USB connector. Would that help? Also, I have an external backup drive.
      My ComputerSystem Spec

  4.    08 Feb 2016 #4

    You should repair the MBR with Recover Media. If you need help finding recovery media, it's made available on Microsoft's website.
      My ComputerSystem Spec


  5. Posts : 11,501
    Windows 10 Pro
       08 Feb 2016 #5

    Please check if the Windows 10 media disk is damaged (if it has scratches or something)
      My ComputersSystem Spec


  6. Posts : 20
    Microsoft Windows 10 Home 64-bit 10586 Multiprocessor Free
    Thread Starter
       08 Feb 2016 #6

    I was able to get a flash drive with repair media off another windows 10 computer I have. I opened command prompt and input CMD> bootrec /scanos. I then hit return and typed CMD> bootrec /rebuildbcd. It responded 'process cannot access the file because it is being used by another process'. I got the same response with fixmbr and fixboot. Am I doing something wrong?
      My ComputerSystem Spec


  7. Posts : 11,501
    Windows 10 Pro
       08 Feb 2016 #7

    Please make a photo of the command prompt and post it.
      My ComputersSystem Spec


  8. Posts : 20
    Microsoft Windows 10 Home 64-bit 10586 Multiprocessor Free
    Thread Starter
       08 Feb 2016 #8

    I was typing the command prompts improperly and managed to run the following:
    Trouble Shoot -> Advanced Options -> Command Prompt

    CMD> bootrec /scanos
    CMD> bootrec /rebuildbcd
    CMD> bootrec /fixmbr
    CMD> bootrec /fixboot

    When I ran rebuildbcd, it asked, do I want to add installation to boot list? I answered yes and the response was 'requested system device cannot be found' Fixmbr and fixboot both ran sucessfully. When I rebooted the computer a blue page came up with' boot configuration data for PC is missing or contains errors. File efi\microsoft\bootbcd. error 0xc000000f.'



      My ComputerSystem Spec


  9. Posts : 11,501
    Windows 10 Pro
       08 Feb 2016 #9

    Please run following commands in command prompt and make a photo of command prompt
    Code:
    diskpart
    list volume
    An example of how it looks like
    Attachment 63137
      My ComputersSystem Spec


  10. Posts : 20
    Microsoft Windows 10 Home 64-bit 10586 Multiprocessor Free
    Thread Starter
       08 Feb 2016 #10

    This is what I got.
      My ComputerSystem Spec


 
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