Administration Rights?

I remember a while back someone asked the question of how to administer Administration rights, even though they were the sole user and administrator of the pc. I now have this same problem. Anyone please point me in the right direction?
Many thanks

You can add a Take Ownership to your context menu which should be used with discretion, i.e. Don't take ownership of your entire C:\ Drive.

Apologies if that is not what you are after.

Maybe this is what you are looking for? Ypu can log in as the Global Adminstrator. This will still not give you access to junction folders and some system folders.

There are a couple of ways:
Open a command prompt (Run as Administrator).
Type the following command and enter.
net user administrator /active
Log out and see if you have a new alternative login, as well as your existing one. If not, do it the long way.
Shut down the computer for a cold boot. Tap the "F8" key as you are booting.
Select "Safe Mode with networking" from the boot menu.
Log into windows 7 with your personal account that holds the administrator access.
Open a command window (START--->RUN--->CMD.exe). At the command prompt type the following net user administrator /active
Log out and log back in as administrator.

Another way
Go to Start
Type Control UserPasswords2. (or Open the Start menu, and type lusrmgr.msc )
Click Advanced.
Click Advanced again.
Select Users.
Select Administrator and untick the the box “Administrator is disabled”
Now log out and login as Administrator.
The action leaves you a little more vulnerable to outside attack. Not a big issue if you are confident with your anti virus control etc.