OST files become orphaned due to many reasons, and the main reason is a disconnect with the Exchange Server. When Exchange Server disconnects from the OST file, the OST file becomes orphaned. Users can easily access your data with the right tool, like FixVare OST Converter. It can easily recover orphaned OST files with zero data loss. It has a selective data feature, in that the user can recover required data instead of the entire OST file. With its user-friendly interface, a non-technical user can easily operate it.