How to Convert OST to PST using this Free Converter Tool

4 min read
24 September 2023

In the realm of email management, Microsoft Outlook stands as a ubiquitous platform. Yet, as versatile as it is, Outlook can sometimes present challenges when it comes to accessing or transferring your email data. This is where the process of converting OST (Offline Storage Table) files to PST (Personal Storage Table) format comes into play. In this article, we'll explore the intricacies of how to convert OST to PST, providing a comprehensive guide to assist you in efficiently managing your Outlook data.

Why Convert OST to PST?

Before delving into the conversion process, it's essential to understand the reasons behind the need to convert OST to PST:

  1. Data Migration: If you're switching to a different email client or a new computer, converting OST to PST ensures that your Outlook data remains accessible.

  2. Data Recovery: In cases of data loss, a PST file can serve as a backup, allowing you to recover crucial emails, contacts, and calendar items.

  3. Archiving: PST files can be used for archiving, helping you maintain a leaner mailbox while preserving essential data.

The Conversion Process: Step by Step

Converting OST to PST is a multi-step process that involves using specialized software. Here's a comprehensive guide on how to get it done:

Step 1: Locate the OST File

  1. Open File Explorer (Windows Explorer) on your computer.

  2. Navigate to the folder where your Outlook OST file is stored. By default, it's usually located in one of the following directories, depending on your Windows version:

    • Windows 7 and Windows 8: C:\Users\<Your Username>\AppData\Local\Microsoft\Outlook
    • Windows 10: C:\Users\<Your Username>\Documents\Outlook Files

Step 2: Choose a Conversion Tool

To convert OST to PST, you'll need a specialized OST to PST conversion tool. Several reputable software options are available for this purpose. Make sure to choose one that suits your needs and budget.

Step 3: Install and Launch the Conversion Tool

  1. Download the selected OST to PST conversion software from the official website.

  2. Follow the installation instructions provided by the software.

  3. Once the installation is complete, launch the software.

Step 4: Select the OST File

  1. Use the conversion tool's interface to select the OST file you want to convert. This typically involves clicking a "Browse" or "Select File" button within the software.

  2. Browse to the location where your OST file is stored (from Step 1) and select it.

Step 5: Specify the Output Location

  1. Choose the location on your computer where you want to save the resulting PST file. Ensure that you have enough storage space for the PST file, as it can be quite large, especially if your OST file contains a lot of data.

Step 6: Begin the Conversion Process

  1. Start the conversion process by clicking the "Convert" or "Start" button within the software.

  2. The tool will begin extracting the data from the OST file and converting it into PST format. The time this process takes depends on the size and complexity of the OST file.

Step 7: Complete the Conversion

  1. Once the conversion is finished, the software will usually provide a notification or confirmation message.

  2. You can now navigate to the location where you specified the PST file to be saved, and you'll find the converted PST file ready for use.


Converting OST to PST is a valuable skill to have when dealing with Outlook data. Whether you're migrating to a new system, recovering lost data, or archiving emails, this process ensures that your Outlook information remains accessible and secure. While the conversion process may appear complex, using specialized software simplifies the task, making it accessible to both technical and non-technical users. By following the steps outlined in this guide, you can effectively convert your OST files to PST format, empowering you to manage your Outlook data with confidence and ease.

In case you have found a mistake in the text, please send a message to the author by selecting the mistake and pressing Ctrl-Enter.
Govind Kumar 2
In today's digitally driven world, data plays a pivotal role in both personal and professional spheres. Managing, migrating, and safeguarding this data can ofte...
Comments (0)

    No comments yet

You must be logged in to comment.

Sign In / Sign Up