Open MS Outlook, go to File > Open & Export > Open Outlook Data File, and select your new PST file. Conclusion

: 2.4 GHz processor, 2 GB RAM, and approximately 194 MB of hard drive space.

Version 2.1.0.63 is not the latest (as of 2026); newer versions may support more Outlook updates or Office 365 OST variants.

: Separate optimization structures handle large memory allocations on x64 systems while remaining lightweight on older x86 hardware.

: It is a dedicated Windows application that does not require Microsoft Outlook to be installed on the machine during the conversion process. Technical Specifications & Licensing

Beyond simple disaster recovery, tools like Coolutils OST to PST Converter serve a darker, more investigative purpose. In legal discovery and

An OST→PST converter is more than a file transformer; it’s a bridge between ephemeral, server-tethered states and portable, archival forms. In IT terms it resolves coupling: freeing data from a particular account or machine so it can be preserved, migrated, or inspected. That liberation is powerful, but with power comes responsibility — meticulous verification, appropriate safeguards, and respect for the provenance of the mailbox contents are essential.

: For power users or server environments, the software includes command-line support for automated or unattended bulk conversions.

Users can choose from personal licenses (for home use), commercial licenses (for offices), and server licenses (for automated conversions via command-line), according to the Coolutils licensing page . Step-by-Step: How to Use the Converter