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  • VM not allow to login

    Hi ,

    We are using VMWare ESXi Server 5.0 and created a windows-dc domain controller as DC. Now my client change the administrator password and forget it. Normally , if we forget the administrator password , we can easily recover the password by removing the sam file , but is it possible with virtual machine.

    Is their a way to recover a administrator password for a virtual machine under esxi server. They do not have a backup even for old stage...

    Thanks,

  • #2
    Re: VM not allow to login

    Windows works in exactly the same way regardless of the underlying hardware. Anything that works on a physical system will work on a VM.

    There are many ways to reset the administrator password of a Windows DC, such as booting from a live CD and temporarily replacing the accessibility tool with cmd.exe. Another involves editing the registry and specifying cmd.exe as the screen saver.

    Once you have a command line window with administrative privileges, you can use the net command to reset the password.

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    • #3
      Re: VM not allow to login

      Hi ,

      Thanks for your quick reply...

      Can you please elaborate more about this 2 methods..such as step by step instruction or something...

      Thank you...

      Comment


      • #4
        Re: VM not allow to login

        Sure. You didn't say which version of Windows you're using, but for 2008 onwards this should work:
        1. Boot the VM from a Windows installation DVD/ISO, and select the repair option
        2. If necessary, load any required storage drivers
        3. From the System Recovery option screen, select "Command Prompt"
        4. Make a backup of C:\Windows\system32\utilman.exe with
          Code:
          copy c:\windows\system32\utilman.exe c:\windows\system32\utilman.bak
        5. Overwrite utilman.exe with cmd.exe by running the following command:
          Code:
          copy c:\windows\system32\cmd.exe c:\windows\system32\utilman.exe
        6. Boot into Windows
        7. On the logon screen, press Win+U (this would normally invoke utilman.exe, but now a command prompt should appear instead)
        8. Reset the password with the command
          Code:
          net user administrator <newpassword>
          (<newpassword> should be replaced with the desired password, obviously)
        9. Replace the bogus c:\windows\system32\utilman.exe with the backup you made in step 4 (utilman.bak)

        If you do a Google search for "Windows domain controller password recovery" you'll find plenty of articles describing this procedure.
        Last edited by Ser Olmy; 9th August 2014, 20:59.

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        • #5
          Re: VM not allow to login

          Hello
          i can to offer you Download "Hiren" -good software helped me a lot times and burn Hiren's Bootable .
          with Hiren you can change Administrator Password in 10 Sec
          Good Luck .

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          • #6
            Re: VM not allow to login

            Originally posted by Meirp View Post
            i can to offer you Download "Hiren" -good software helped me a lot times and burn Hiren's Bootable .
            with Hiren you can change Administrator Password in 10 Sec
            You do realize that NTpass, the password reset tool found on Hiren's Boot CD (and System Rescue CD and many other live CDs), doesn't work on domain controllers?

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            • #7
              Re: VM not allow to login

              Originally posted by Ser Olmy View Post
              You do realize that NTpass, the password reset tool found on Hiren's Boot CD (and System Rescue CD and many other live CDs), doesn't work on domain controllers?
              And most of the software on the disk is pirated.

              Lets keep this on track.

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