GiveMePower (GMP) is a tool that will give you System Level privileges for any application you open with it similar to Root under a Linux system.

It has all the power of the Administrator Account and the advantage that most files/registry keys, etc. on our system already have full control of system accounts. Thus, it does not require you to take ownership/modifying permission like we would be required to do with a standard admin account.

The biggest advantage of GMP is that it gives you access to almost everything without the need to modify the permission/ownership of the object you are trying to see/modify.

You can see the effect of this by looking in the Windows Task Manager. You will notice that the application you opened with GMP is running with the username System.

DDU (for example) is using the same technique to clean the systems of drivers.

Typical usage:
-Can help installing drivers that have permission access/denied
-Accessing previously unavailable registry regions with 'regedit'
-System files edit
-Anything you think of that required higher privileges

GMP is a powerful and dangerous utility. It should only be used by users who known what they are doing.
Some application were not made to have this kind of system privilege and may do react unexpectedly; so be careful.

Here is a simple test to show you a bit of what it can do:

-Open 'regedit' (With an Admin account) and go to HKEY_LOCAL_MACHINESECURITY - It should be empty

-Now close 'regedit'

-Reopen it with GiveMePower (GMP) and go to the same key - you will now see that it has subkeys, and you can freely access them

This would be impossible with only an Admin account without modifying permission/taking ownership, etc.