In Windows 2008 R2, Microsoft introduced a new feather (Active Directory Recycle Bin) that allow you to recover Active Directory object without a need to use old method that required to use "Directory Restore Mode" etc. However, the new feather is supported by using a command line by default.
During my surf on the net., I found two freeware tools that provides a GUI solution for the new feather.
The first tool can be downloaded from the link: ADRecycleBin
The second tool can be downloaded from the link: Enabling the Active Directory Recycle Bin Feature on Windows 2008 R2
Note: Before using the tools above, please read the following article: Requirements for Active Directory Recycle Bin