Best Methods to Reduce PST File Size and Improve Outlook Performance

A PST file is crucial for Microsoft Outlook users because it stores all emails, contacts, calendars, & other data. However, over time, as emails, attachments, & data grow, the PST file's size also grows. Large PST files not only slow down Outlook but can also sometimes cause problems like Outlook crashing or data corruption.

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For Outlook to function smoothly and to protect data, a PST file must be compressed or shrunk. In this blog, we'll learn how to compress a PST file without losing any emails, using both methods:

Manual Method (from within Outlook)
Using a Third-Party Professional Tool

Part one: Manual Method: How to Compress a PST File in Outlook

Microsoft Outlook has a built-in option that allows you to compact (shrink) a PST file. Although this process may be a bit lengthy and only saves a small amount of space, it is a safe method.

Step-by-Step Process:

Open Outlook.
Launch your Microsoft Outlook application.

Go to Account Settings.
Click the File menu → Info → Account Settings → Select "Account Settings" again.

Select the Data Files tab.
All your PST files will appear here. Select the PST file you want to compress.

Click Settings.
Now, press the "Settings" button, then click "Compact Now."

Wait for the process to complete.

Outlook will now compact your PST file and remove unnecessary space.

Note- This method is only effective if you deleted a large amount of data (such as old emails or attachments). Outlook only recovers the free space left by the deleted data.

Part two: The best way to compress a PST file is to use a third-party program.

The best choice is to utilize a third-party PST compression program if your PST file is exceedingly huge (10GB or more) if Outlook's "Compact Now" functionality isn't functioning.

Softaken Compress PST Tool is a simple and safe tool that compresses large PST files into smaller parts without losing any emails, contacts, or attachments. This tool maintains 100% data integrity and prevents any corruption.

Key Features

• Reduces PST file size by up to 80%
• Splits the file into smaller parts without data loss
• Option to save attachments to a separate folder
• All versions of Outlook.
• User-friendly interface & fast process

Compressing process with the tool

Download and install the tool.
Install Softaken Compress PST software on your system.

Add the PST file.
Browse your PST file by clicking the "Add File" button.

Select the compression option.
Options like "Save Attachments in Folder" and "Remove Attachments" are available if you'd want.

Set the Destination Path.
Select the location where you want to save the new compressed PST file.

Start the process.
Click “Compact Now” and your PST file will be reduced in size within minutes.

Why is it important to compress your PST file?

1. Outlook performance improves
2. Reduces the risk of PST corruption
3. Backups and transfers are easier
4. Saves disk space

Ultimately:
If you want to minimize the size of your PST file in Outlook, you can begin using the manual method. But if you want to quickly and easily reduce the size of your PST or if it's fairly large, the Compress PST Software is a great choice.

This program maintains your emails and attachments while shrinking the size of the PST file.