locked
Server 2008 R2 Administrator Password

    Question

  • I setup a Server 2008 standard R2 with Hyper V.  I have forgotten the Administrator password on both the local and virtual side.  Both the local and virtual have the same Administrator password.  I do have my own account on the local side and I am in the administrator group. I understand from some of the post here that I can change the Administrator account from my account, but is there a way to bridge from the local to the virtual side and change the Administrator account there using my account?
    Friday, August 19, 2011 6:34 PM

Answers

  • Hi,

     

    You can use your own account to reset the password of the local administrator. Regarding administrator password in Hyper-V machine, do you have any other user who has administrator privileges in this virtual machine? If so, you can use that user to reset the administrator’s password.

     

    If you have no other administrator account, there is no Microsoft recommended way to reset the administrative passwords. This is designed for improving the OS security. Thanks for your understanding.

     

    For more information, please take a look at the following Microsoft Knowledge Base article:

     

    Microsoft policy about lost or forgotten passwords

    http://support.microsoft.com/kb/189126/en-us

     

    Regards,

    Bruce

    • Marked as answer by Bruce-Liu Wednesday, September 07, 2011 8:14 AM
    Tuesday, August 23, 2011 8:52 AM

All replies

  • You should consider making a password reset boot CD image.  Configure the VM to boot to the .ISO and run through the password reset process.  There are many utilities that will perform the reset.  One popular free program to do this is available at the following URL:

    http://pogostick.net/~pnh/ntpasswd/

    Brian

    Friday, August 19, 2011 11:53 PM
  • I blanked the password and I still cant get in.
    Sunday, August 21, 2011 12:22 AM
  • Let's see if anybody else has some other ideas.

    Sunday, August 21, 2011 1:54 AM
  • Hi

    If you are in the Administrators group then you should be able to reset the password. Follow the guide in this link :

    http://technet.microsoft.com/en-us/library/cc754651(WS.10).aspx#BKMK_NetFndtn_ChngPWD_2008

     

    BR

    René

    Sunday, August 21, 2011 3:29 PM
  • Hi,

     

    You can use your own account to reset the password of the local administrator. Regarding administrator password in Hyper-V machine, do you have any other user who has administrator privileges in this virtual machine? If so, you can use that user to reset the administrator’s password.

     

    If you have no other administrator account, there is no Microsoft recommended way to reset the administrative passwords. This is designed for improving the OS security. Thanks for your understanding.

     

    For more information, please take a look at the following Microsoft Knowledge Base article:

     

    Microsoft policy about lost or forgotten passwords

    http://support.microsoft.com/kb/189126/en-us

     

    Regards,

    Bruce

    • Marked as answer by Bruce-Liu Wednesday, September 07, 2011 8:14 AM
    Tuesday, August 23, 2011 8:52 AM
  • If you have accessibility options enabled and no hard disk encryption, try this...

    Boot to installation media and get a cmd prompt

    run the following commands:
    copy c:\windows\system32\magnify.exe c:\windows\system32\magnify.exe.old
    copy c:\windows\system32\cmd.exe c:\windows\system32\magnify.exe

    reboot

    When prompted to login, click the accessibility button (bottom left) and place a check next to screen magnifier.  This should launch a command prompt window with system level privs.  You can now *safely* change the administrator's password.

    Here's an webpage better describing the process:
    http://www.computerperformance.co.uk/vista/vista_backdoor_logon.htm

    The same method can be done to recover your virtual systems.

    • Proposed as answer by Mr Mister Tuesday, November 08, 2011 6:03 PM
    Wednesday, August 24, 2011 7:05 PM
  • For Windows Server 2008 R2 domain password reset, I've ever tried many ways to solve the forgotten password problem.

    Finally, I chose the Windows Password Recovery Corporation to help me.

    Step1. Google search "Windows Password Recovery Corporation", download and install in any available computer.

    Step2. Create a bootable CD/DVD or USB flash drive. (A blank CD/DVD/USB Flash Drive is needed)

    Step3. BIOS set. Boot computer from the created CD/DVD/USB Flash Drive and set BIOS setup.

    Step4. Reset Windows server 2008 or 2008R2 password to Re123456.

    Saturday, August 27, 2011 4:01 AM
  • Hi,

    Yes. If the virtual machine's network card is bridged to your physical NIC you can either connect using HyperV's console to the VM or using remote desk connection from the host. If you have admin privileges with your user account u can reset the password. And don't set it as a blank password I am not sure that could work. I think it's the easiest way.

     

    Good luck.


    MCTS...
    Sunday, August 28, 2011 8:07 AM
  • Hey PJHANSON,

    Thank you very much!  This was a huge help!

    Thanks Again,

    Mr Mister

    Tuesday, November 08, 2011 6:04 PM
  • Hi jeacklayten,

     

    I purchased the Windows Password Recovery

    It does not work. When I tried to change the location of where the windows file is located, the Windows Password Recovery interface is grayed out and it is pointing to the drive where the software is. Can you help? I contacted support at Windows Password Recovery, however, there have not given me a resolution,

    Friday, November 18, 2011 1:01 PM
  • Dude,

    Try PJHANSON's answer.  Worked fine for me and I've tried it now 3 times.

    Boot to installation media and get a cmd prompt

    The catch is that you have to note which drive letter is mounted.  In the case below, it was D not C.

    Run the following commands:
    copy c:\windows\system32\magnify.exe c:\windows\system32\magnify.exe.old
    copy c:\windows\system32\cmd.exe c:\windows\system32\magnify.exe

    Reboot

    I then selected the magnifier tool which launched cmd.exe and did the following to reset the password:

    Net user %username% %password%

    Note that if you check permissions with “whoami,” you’ll see:

    Nt Authority\system

    I then rebooted:

    shutdown -r -t 10 -f -c "Password Reset" -d p:4:1

    Make sure to clean up after yourself by re-copying the magnifier.exe…you’ll need to reboot and boot with the CD all over again and go to a cmd prompt to do it.

    • Proposed as answer by Mr Mister Friday, November 18, 2011 3:08 PM
    Friday, November 18, 2011 3:07 PM
  • Hi jeacklayten,

     

    I purchased the Windows Password Recovery

    It does not work. When I tried to change the location of where the windows file is located, the Windows Password Recovery interface is grayed out and it is pointing to the drive where the software is. Can you help? I contacted support at Windows Password Recovery, however, there have not given me a resolution,

    I tried the methods described in windows server 2008 r2 forgot administrator password?.

    It worked file and helped me reset windows server 2008 domain administrator password easily.



    Thursday, April 12, 2012 2:03 PM
  • You can use reset windows server password disk to reset your lost windows server 2008 password. This is the best window server 2008 administrator password recovery way. Hope this ways can help you solve your windows server 2008 password problem.




    Tuesday, July 17, 2012 3:15 AM