To Transfer OST file to New Computer, you cannot directly move the file, as OST (Offline Storage Table) files are tied to a specific Outlook profile and system. The manual process involves converting the OST file to PST (Personal Storage Table) format. First, on the old computer, open Microsoft Outlook, go to File > Open & Export > Import/Export, choose Export to a file, select Outlook Data File (.pst), and export the required mailbox data. Then, transfer the PST file to the new computer using a USB drive or cloud storage. On the new computer, open Outlook and import the PST file using the Import/Export option. However, this method has limitations--if the original Outlook profile is not accessible or if the OST file is orphaned (disconnected from the server), this process won't work. 

To simplify the transfer, the Cigati OST to PST Converter Tool can convert OST files to PST effortlessly, even if Outlook is not installed. It ensures complete data recovery, including emails, attachments, contacts, and calendars, making the transition seamless. With an intuitive interface and multiple format options, this tool is a reliable solution for migrating OST files to a new computer without data loss or technical complexities.