Install Active Directory management tools on Windows 7 & Windows 8

The Remote Server Administration Tools (RSAT) for Windows 7 & 8 can be downloaded from Microsoft's web site:

For Windows 7 : 
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=7d2f6ad7-656b-4313-a005-4e344e43997d

For Windows 8 : 

http://www.microsoft.com/en-us/download/details.aspx?id=28972

After downloading and installing the tool on your Windows 7 computer, use the Turn Windows features on or off function to enable AD management tools.

1) From the Control Panel, click on Programs.
2) Under Programs and Features, select Turn Windows features on or off.
3) Under Remote Server Administration Tools > Role Administration Tools, select AD DS and AD       LDS Tools.