I recently faced an issue where my Outlook profile became inaccessible due to a corrupted or orphaned OST file. I need to recover all my mailbox data, including emails, contacts, and calendar items, from the OST file and convert it into PST format so I can access it again in Outlook. Can anyone suggest a reliable and safe method or tool to recover OST to PST without losing data integrity? Also, is there any manual way to do this, or should I use a professional converter?