How to Change MS Outlook OST file to PST?

Written by Lucy John on June 03, 2025

There are numerous reasons due to which you need to convert an OST to PST file. Some of the major reasons for OST file conversion are mentioned below-

Methods to Change OST to PST:

Manual Method: You can convert your OST to PST file using manual method. To do that, follow the steps mentioned below-

But, the disadvantage of this method is, it only works if you are connected to Exchange Server.

Tool to change Outlook OST to PST: Yodot OST to PST Converter

Yodot OST to PST Converter easily converts Outlook OST file to PST file, including corrupted, orphaned, or healthy OST files. You can recover calendars, contacts, notes, tasks, and more.

The tool supports unreadable OST file conversion on Microsoft Exchange Servers, and 2010 on all Windows systems.

Guide on How to Change Outlook OST to PST file:


Download and install Yodot OST to PST Converter tool on Windows computer. Upon completion of installation process, you can view shortcut icon on Windows desktop. Click on shortcut icon for launching the application and follow instructions that are available on every screen.

Conclusion:

We hope this article helped you convert OST to PST file. You can use it to backup and archive, or choose to transfer your Outlook data across various other versions of Outlook.

Frequently Asked Questions

1: Can I replace an OST File with a PST file?
No, you cannot directly replace an OST file with a PST file in Outlook, as they serve different purposes (OST syncs with Exchange Server, PST is standalone). However, you can convert the OST file to PST format using a PST converter software and import the PST file into Outlook.

2: Can I open an OST File in Outlook?
You cannot open an OST file directly in Outlook if it’s tied to a different mailbox or corrupted. Convert it to PST format using a PST converter software to access its contents in Outlook.

Tips to be considered:

  • Maintain good power backup while working on Outlook OST file or while OST file is syncing with Exchange Server
  • Use good antivirus protection on Windows PC to avoid suspicious viruses infection on OST file
  • Keep backup of Outlook OST file to overcome OST file corruption issues

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