The OST to PST Converter allows users to move their Outlook (OST) data over to Outlook for Windows by converting it to a PST file extension. The conversion transfers the user’s complete email messages, contacts, calendar entries, and all attachments while preserving the original folder structure, formatting, and essential information associated with each message, including author, subject, date received, and whether or not it has been marked as read (unread). Users can either convert only a portion of a small or large mailbox or convert all folders/items in an OST to PST manner, depending on their needs. The procedure for performing this particular type of file conversion is simple: import the OST file the user wants to convert to PST, choose the conversion options needed – as well as the desired destination location – and then run the conversion and import the newly created PST file into the user’s new Windows system via Microsoft Outlook. The tool provides complete security to the user’s data during conversion, meaning the user will retain access to the original OST file during and after the conversion process as well.