Access the Server Manager and click the Preferences tab.
Click the Restore Configuration link.
The Restore Configuration page is displayed. The page lists all the previous configurations ordered by date and time.
Click the Restore link for the version you want to restore.
If you want to restore all files to their state at a particular time, click the Restore to time link in the left column of the table. time is the date and time to which you want to restore.