The reason for that is that you need to have the local administrator's password in order to perform the following tip, and if you don't have it, then the only method of resetting it is by using the above tool.
Update: After some reader feedback I'm pleased to say that this procedure ALSO WORKS for Windows Server 2008 Domain Controllers. Feel free to send in your feedback. I kept the original page syntax in relation to Windows Server 2003, but you can now perform the same actions on Windows Server 2008.
Lamer note: This procedure is NOT designed for Windows XP since Windows XP is NOT a domain controller. Also, for a Windows 2000 version of this article you should read the Forgot the Administrator's Password? - Change Domain Admin Password in Windows 2000 AD page.
Reader Sebastien Francois added his own personal note regarding the changing of Domain Admin passwords on Windows Server 2003 Active Directory domains (HERE). I will quote parts of it (thanks Seb!):
Requirements
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.
Step 2
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).
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:
Update: After some reader feedback I'm pleased to say that this procedure ALSO WORKS for Windows Server 2008 Domain Controllers. Feel free to send in your feedback. I kept the original page syntax in relation to Windows Server 2003, but you can now perform the same actions on Windows Server 2008.
Lamer note: This procedure is NOT designed for Windows XP since Windows XP is NOT a domain controller. Also, for a Windows 2000 version of this article you should read the Forgot the Administrator's Password? - Change Domain Admin Password in Windows 2000 AD page.
Reader Sebastien Francois added his own personal note regarding the changing of Domain Admin passwords on Windows Server 2003 Active Directory domains (HERE). I will quote parts of it (thanks Seb!):
Requirements
- Local access to the Domain Controller (DC).
- The Local Administrator password.
- Two tools provided by Microsoft in their Resource Kit: SRVANY and INSTSRV. Download them from HERE (24kb).
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.
Step 2
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).
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).
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