To unsubscribe from a shared folder perform the following steps:
Click the Folder Properties or Sharing icon above the folder list on the left-side navigation panel in two-pane layout.
Click Folder Properties or Sharing from the Folder Actions drop-down list above the folder list on the left-side navigation panel in three-pane layout.
A drop-down list appears.
The Unsubscribe Folder dialog box appears. Click OK to unsubscribe from the shared folder.
Alternatively, you can unsubscribe from a shared folder by right-clicking the folder and select Unsubscribe.