How to Select Restore Source Objects

The method that you use to select the source that you want to restore depends on the methods used to back up the sessions.

Select individual mailboxes from Full and Copy Backups (only Exchange Server 2007, 2010, and 2013), and Incremental and Differential Backups (only Exchange Server 2010 and 2013)
When the options Restore selected mailboxes to live database from Recovery Storage Group or Restore selected mailboxes to live database from Recovery Database is selected, you can browse the restore source down to the mailbox level and select the individual mailboxes as the restore source, as illustrated by the following screen:
Select Partial Storage Group (only Exchange Server 2007)
When you are restoring the full or copy session, the default restore options let you select a storage group, database, or logs to restore. If at least one database is selected, the logs are selected automatically, as illustrated by the following screen:

Note: Even if you only select some databases of the storage group to restore, all the databases of the storage group will have to be dismounted before restore.
Select Incremental and Differential sessions
When you are restoring incremental or differential backup sessions of Exchange Server 2003 or 2007, you can select only the entire storage group because the incremental and differential backup sessions contain only log files. When you are restoring incremental or differential backup sessions of Exchange Server 2010 or 2013, you can select the entire database to restore or select the individual mailboxes.