hey guys i've tried to install AFDKO on windows 7 but i am finding i am getting an error saying access is denied. Did anyone face the same problem?

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\Morpheus>C:\FDK\FinishInstallWindows.cmd
Adding the FDK executable path 'C:\FDK\Tools\win' to the system environment vari
able PATH.
Error WindowsError(5, 'Access is denied')
You need system admin privileges to run this script and install the FDK.
Quitting. Failed to add the FDK path to the system environment variable PATH.


i've Tried doing this but nothing happened

Cheers
M