If you didn't launch Nucleus Kernel Undelete - Deleted File Recovery Software immediately after installing it, you can launch the application as following the steps below:
In Windows, click the Microsoft Start button.
Click All Programs > Nucleus Kernel Undelete > Nucleus Kernel Undelete. The Nucleus Kernel Undelete - Windows Data Recovery Software screen appears as follows:
On selecting the Logical Drives, it will show you all the necessary information about the selected drive in the right pane of the window.