Using Outlook Client:
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1. Open the Outlook client from where the public fodler items were deleted.
2. Go to Deleted Items folder and highlight the folder.
3. Click on Tools--->Recover Deleted Items
4. If you see the public fodler item, select the item and click-->Recover Selected Items icon.
5. You will see the item in the deleted Items from where you can restore.

Using OWA:
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Click on public folders, it will open up a new windows with the public folder structure
· Browse to the parent folder of the deleted object, right click on the parent public folder and select "Open in New..."
· Change the URL from <http://servername/public/toplevel/subfolder/?cmd=content> to <http://servername/public/toplevel/subfolder/?cmd=showdeleted&btnClose=1>
· Find the deleted folder, highlight the folder, and click Recover.

Using the PFDAVAdmin tool:
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Step 1: Download the PFDAVAdmin tool

a.  Download the PFDAVAdmin tool from the following Microsoft Download Center Web site.
 
b.  Copy the tool to a folder on the desktop.

c.  Double-click the PFDAVAdmin.exe file, and then extract the files to an appropriate drive. A folder named PFDAVAdmin is created. The files are extracted into the PFDAVAdmin folder.

Step 2: Recover a deleted public folder

a.  Move to the PFDAVAdmin folder, and then double-click the PFDAVAdmin.exe file.
b.  On the File menu, click Connect.
c.  In the Exchange server box, type the name of the Exchange server to which you want to connect.
d.  In the Global Catalog box, type the name of the global catalog server.
e.  If it is required, click to clear the Authenticate as currently logged-on user check box. Type an appropriate user name, password, and domain in the respective boxes.
f.  In the Connection area, click Public Folders, and then click OK.
g.  Expand Public Folders, and then click the parent folder of the deleted folder.
h.  Right-click the parent folder, and then click Show deleted subfolders. The deleted subfolder is shown in red.
i.  Right-click the subfolder, and then click Recover folder.
j.  Click OK to acknowledge the Recovery succeeded message. The recovered folder name appears as Folder_Name Recovered.
k.  Test access to the folder by using an e-mail client.
l.  In Exchange System Manager, right-click the recovered folder, and then rename the folder.

Step 3: Recover a deleted item
a.  In PFDAVAdmin, open the folder that contains the deleted item.
b.  Click the Items tab, and then click Deleted items.
c.  Right-click the item that you want to recover, and then click Recover items.
d.  Click OK to acknowledge the Recovering these items message. 

Using MFCMAPI:
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· Obtain MFCMAPI and copy it to the Exchange server. You can also run this from your workstation if need be.
· Create a profile for a mailbox that resides on the same server in which the Public Folder was deleted from. This mailbox needs Service Account admin rights on the Exchange server.
· Choose Session, and then Logon and Display Stores
· Choose the profile created above, and then select OK
· Double-click the Public Folders entry
· In the new window for the Public Folders; expand Public Root
· Expand IPM_SUBTREE, and then navigate to the folder which contained the Public Folder which was deleted.
· Right click the folder and then select "Open Deleted Sub Folder Table"
· A new window opened for the Deleted Public Folders; expanded the top-level item.
· The deleted folders are now listed
· Navigate to & highlight the folder you wish to recover, right click it and select "Restore Deleted Folder".
· Enter the name for the restored folder and select the checkbox "COPY_SUBFOLDERS" to recover subfolders as well. Click OK.

Note: If there are no subfolders, you will get an error when attempting the recovery. If that is the case, then try to recover the folder again and then do not select the checkbox.

If you already have public fodler replication set to different servers, it is not that tough to get the deleted items back. Key is do it early.

If none of the above steps work, then you will need to restore the public store to an offline recovery server and then extract the contents of the folder to PST and then reimport the data using Outlook. You will lose permissions using this method, but at least you will get your data back.