Click the Rename Folder icon above the folder list on the left-side navigation panel in two-pane layout.
Click Rename Folder from the Folder Actions drop-down list above the folder list on the left-side navigation panel in three-pane layout.
The Rename Folder dialog box appears.
Enter your new name for the folder and click Rename Folder.
The folder is renamed to the new name.
Alternatively, you can rename a folder by right-clicking the folder that you want to rename and select Rename Folder.