Windows 8 and 8.1 Forums


Steps to take when running cmd prompt stuff at UEFI menu

  1. #1


    Posts : 31
    Windows 8.1

    Steps to take when running cmd prompt stuff at UEFI menu


    Hi!

    When I'm at the command prompt, at the UEFI repair menu utilies, what is the preferred order to best run the following commands:

    sfc /scannow


    bootrec /fixmbr
    bootrec /fixboot
    bootrec /rebuildbcd


    chkdsk c: /f



    Should I first do a "C:" or can I safely run them all straight from "X:"? Will it automatically identify the installation that needs to be repaired?

    Thanks!

      My System SpecsSystem Spec

  2. #2


    Posts : 209
    Windows 8.1 (HOME not Pro) 64bit


    hopefully someone else will chime in but i'm pretty sure you want your bootrecord to be fixed first.. i mean thats only what you boot from.. then run sfc.. then chkdsk..
      My System SpecsSystem Spec

  3. #3


    Posts : 2,690
    Windows 3.1 > Windows 10


    what is your issue? wont boot?

    without assigning "C" you will be running those commands on "X" which is winpe booted into memory
      My System SpecsSystem Spec

  4. #4


    Posts : 31
    Windows 8.1


    Quote Originally Posted by KYHI View Post
    what is your issue? wont boot?

    without assigning "C" you will be running those commands on "X" which is winpe booted into memory
    The usual problem is windows failing to boot, or repair loops.

    So I should always start by assigning "C:"(or whichever driver the OS is), is that it? And then proceed with those commands?
      My System SpecsSystem Spec

  5. #5


    Posts : 2,690
    Windows 3.1 > Windows 10


    from your "X" command prompt - run this command ( with "W" being the refferance to the Windows partition drive letter)


    W:\Windows\System32\bcdboot W:\Windows


    if you ain't sure what drive letter was assigned to you windows partition - type

    diskpart
    list volume

    you will now see the drive letter assigned to the windows partition..

    type exit to get out of diskpart prompt, then run that command
      My System SpecsSystem Spec

  6. #6


    Posts : 31
    Windows 8.1


    Quote Originally Posted by KYHI View Post
    from your "X" command prompt - run this command ( with "W" being the refferance to the Windows partition drive letter)


    W:\Windows\System32\bcdboot W:\Windows
    Wow Ive never heard of that before. Ever.

    Everyone always told me to open the prompt, even if it's set to "X" and run them straight without changing a thing.

    So can I really run all my 5 commands consecutively after that line? Nothing else missing before or in between?

    C:\Windows\System32\bcdboot C:\Windows
    sfc /scannow
    bootrec /fixmbr
    bootrec /fixboot
    bootrec /rebuildbcd
    chkdsk c: /f
    And finally, is the order correct so everything goes smoothly or should I change something there?
      My System SpecsSystem Spec

  7. #7


    Posts : 2,690
    Windows 3.1 > Windows 10


    that command will re-write your boot files.. so bootrec is not needed

    the only other command you may need to run is the chkdsk command before bcdboot

    I would run sfc from within windows

    chkdsk c: /f
    C:\Windows\System32\bcdboot C:\Windows
      My System SpecsSystem Spec

  8. #8


    Posts : 31
    Windows 8.1


    Quote Originally Posted by KYHI View Post
    that command will re-write your boot files.. so bootrec is not needed

    the only other command you may need to run is the chkdsk command before bcdboot

    I would run sfc from within windows

    chkdsk c: /f
    C:\Windows\System32\bcdboot C:\Windows
    Humm why sfc from within windows? What if it's actually the solution to make windows bootable?
      My System SpecsSystem Spec

  9. #9


    Posts : 2,690
    Windows 3.1 > Windows 10


    because it scans for corrupt windows store package(s)

    not the bootable files
      My System SpecsSystem Spec

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