Getting my head around Group policies and NTFS

Having abit of trouble with the above topic, its compleatly loosing me inheritance, assigning permitions ect, can anyone point me in the direction as to where i can practice this like setting up a lab to test out, i have two PCs and a cross over cable, money it abit tight at the moment so i cant get anymore equipment or books to learn from
got 3 weeks left and am starting to think about putting it back even thou i have the 2nd shot, i want to keep my string of passing first time


Comments
Keep reading stuff while im at work now, but its not sinking in
Whats one of these?
Rubric
Regarding NTFS permissions, you will find the Effective Permissions tab helpful. In windows explorer, r-click on some file or folder > Properties > Security > Advanced > EP