A Step-by-Step Guide to Transfer Microsoft OST Mailbox Data into PST File Format.

For both personal and business use, Microsoft Outlook is one of the most popular email clients. It keeps mailbox data in two main file types: OST and PST. 

Why You Should Move OST Mailbox Data to PST Format

There are many reasons why people want to change OST files to PST format. Some of the most common reasons are:

• Exchange Server crashes or is not accessible
• Deleting Outlook profiles by mistake
• Need to move emails to a different Outlook account
• Need to make backups of mailboxes
• OST files that have been corrupted or damaged
• Switching from Exchange or IMAP accounts to POP accounts
• Converting OST files to PST format makes it easier for users to get to important mailbox data and makes it easier to find.

How to Move OST Mailbox Data to PST by Hand

Microsoft Outlook has a built-in Import/Export feature that lets users move OST data to PST format. Please follow the steps below exactly.

First, open Microsoft Outlook.

Open Microsoft Outlook on the computer where the OST file is set up and synced correctly. To avoid exporting incomplete data, make sure Outlook is connected to the server.

Step 2: Open the File Menu

In the top left corner of the Outlook window, click on the File tab. Choose Import/Export after clicking Open & Export.

Step 3: Pick the Export Option

Choose "Export to a file" in the Import and Export Wizard and then click "Next."

Step 4: Choose the PST File Format

Select Outlook Data File (.pst) from the list of options and then click Next.

Step 5: Choose the Mailbox Folder

Select the folder in your mailbox that you want to export. If you want to export the whole mailbox, click on the main account folder and check the box next to "Include subfolders."

Step 6: Choose the Destination Location

Find the place where you want to save the PST file. Choose the right option for duplicate items and then click Finish.

Step 7: Set a Password (Optional)

For security reasons, you can set a password for the PST file. When you're done, click OK to finish.

The PST file will be made and saved in the place you chose.

A professional way to change OST files to PST files

The best way to move OST mailbox data to PST file format is to use a professional tool. has a powerfull Toolsbaer OST to PST Conversion tool that lets users change OST files without losing any data. 

How to Use Professional Software to Convert OST Mailbox Data

Step 1: Install the software and run it.

Get the OST to PST converter tool and install it on your computer. After you install the software, open it.

Step 2: Put in the OST File

To choose the OST file you want to convert, click on the Add File or Browse button.

Step 3: Look at the mailbox data

The software scans and shows a preview of mailbox data so that users can check emails and other items before they are converted.

Step 4: Pick PST as the output format

Choose PST from the list of export options as the format you want.

Step 5: Begin the Conversion

To begin the conversion process, click the Convert button. The software will quickly change OST mailbox data into PST format.

Step 6: Keep the file that was changed

When you're done, save the converted PST file to the place you want.

The converter makes sure that data is transferred correctly while keeping the original folder structure and metadata properties.

Final Thoughts

For backup, migration, and recovery, it is important to move Microsoft OST mailbox data into PST file format. Outlook does have a way to export files by hand, but it has a lot of problems and risks.