Enabling Windows Server 2008 R2 Built-In Administrator Account

Question

The properties box for my Windows Server 2008 R2 built-in administrator program says the account is disabled.  Even the primary user account has virtually no priveliges.  How can I, with a mere primary user account available at logon, enable
the built-in administrator account, or otherwise grant my primary user account administrator priveliges?  Windows Server 2008 R2 denies my primary user account access/permission for nearly all changes to accounts, programs and OS features. 
Stephen W Plunkett

Answer 1

The properties box for my Windows Server 2008 R2 built-in administrator program says the account is disabled.  Even the primary user account has virtually no priveliges.  How can I, with a mere primary user account available at logon,
enable the built-in administrator account, or otherwise grant my primary user account administrator priveliges?  Windows Server 2008 R2 denies my primary user account access/permission for nearly all changes to accounts, programs and OS features. 
Stephen W Plunkett
In some of the organisations, default admin accounts on member servers are purposefully locked/disabled through group policy for security reasons.
If you know the password for locked out/disabled admin account then there is a possibility of unlocking/re-enabling the account without using any third party tools.
To do that,
Restart the server
Press F8 and select Safe Mode Without
Networking
Log on to the server with locked out/disabled admin account with its password.
If you could successfully log on to the server then you will have option to unlock and enable the built-in admin account !
Most of the downtime's are caused because of SysAdmin's curiosity ! - Santosh