Reset doménových admin účtů

A 1:

I had to reset the domain administrator password on Windows Server 2008 because the password was lost (not by me for a change!). I ran across this very nice youtube video by Mathieu (Chateau?) that worked perfectly: http://www.youtube.com/watch?v=Ar-VoO9ogHc.

I’m kinda paranoid about useful webpages being removed, so I am writing down a description of the video here just in case:

Insert the original Windows Server 2008 installation DVD.
Reset the computer, boot from DVD.
Choose option “Repair your computer”.
Start command prompt.
C:\
CD C:\Windows\System32
MOVE Utilman.exe Utilman.exe.bak
COPY Cmd.exe Utilman.exe
Restart windows
At the login screen, type Windows-U, this fires up cmd.exe now
NET USER administrator <new password>
Presto! Login as administrator!
Now repair computer again and move the original Utilman.exe back.
There are a bunch of commercial tools to reset the administrator password, but there is no need for it! Furthermore most of them seem to reset just the local administrator account’s password, rather than the domain administrator password.

A 2:

Step 1

Restart Windows 2003 in Directory Service Restore Mode.

Note: At startup, press F8 and choose Directory Service Restore Mode. It disables Active Directory.

When the login screen appears, log on as Local Administrator. You now have full access to the computer resources, but you cannot make any changes to Active Directory.

You are now going to install SRVANY. This utility can virtually run any programs as a service. The interesting point is that the program will have SYSTEM privileges (LSA) (as it inherits the SRVANY security descriptor), i.e. it will have full access on the system. That is more than enough to reset a Domain Admin password. You will configure SRVANY to start the command prompt (which will run the ‘net user’ command).

Step 2
Copy SRVANY and INSTSRV to a temporary folder, mine is called D:\temp. Copy cmd.exe to this folder too (cmd.exe is the command prompt, usually located at %WINDIR%\System32).

Start a command prompt, point to d:\temp (or whatever you call it), and type:
instsrv PassRecovery? “d:\temp\srvany.exe“

(change the path to suit your own).

It is now time to configure SRVANY.

Start Regedit, and navigate to

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\PassRecovery

Create a new subkey called Parameters and add two new values:

name: Application type: REG_SZ (string) value: d:\temp\cmd.exe name: AppParameters? type: REG_SZ (string) value: /k net user administrator 123456 /domain

Replace 123456 with the password you want. Keep in my mind that the default domain policy require complex passwords (including digits, respecting a minimal length etc) so unless you’ve changed the default domain policy use a complex password such as P@ssw0rd

Now open the Services applet (Control Panel\Administrative Tools\Services) and open the PassRecovery? property tab. Check the starting mode is set to Automatic.

Go to the Log On tab and enable the option Allow service to interact with the desktop.

Restart Windows normally, SRVANY will run the NET USER command and reset the domain admin password.

Log on with the Administrator’s account and the password you’ve set in step #2.

Use this command prompt to uninstall SRVANY (do not forget to do it!) by typing:

net stop PassRecovery? sc delete PassRecovery?

Now delete d:\temp and change the admin password if you fancy.

Done!