Remove Junk and Unused Space from PST File: Step by Step Guide

Outlook PST files have the capacity to grow significantly over time. The extra space that junk data, deleted items, emails, & attachments take up in the PST file slows down Outlook & often causes issues.

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In this blog, we'll show you how to remove junk and unused space from a PST file, both manually and with third-party tools.

Why does junk and unused space accumulate in a PST file?

Deleted Items

• Large email attachments
• Junk/Spam emails
• Uncompact PST file
• Old and useless folders

Method 1:- Cleaning a PST file manually in Outlook

Outlook has several options for deleting unnecessary content.

Step 1:- Empty the Deleted Items & Junk Folders

• Open Outlook
• Right-click the Deleted Items folder
• Select Empty Folder
• Repeat the same process for the Junk Email folder

Step 2:- Delete Large Emails and Attachments

• Go to Inbox
• View > View Settings > Filter
• Sort emails by size
• Delete unnecessary large emails and attachments

Step 3:- Use the Archive Feature

• File > Tools > Clean Up Old Items
• Select the date of archiving
• Move old emails to a separate PST

Step 4:- Compact the PST File

• File > Account Settings > Account Settings
• Open the Data Files tab
• Select the PST file and click Settings
• Press the Compact Now button

This removes any unused space in the PST file.

Method 2:- A independent program can assist you in easily optimizing a PST file.

Manual approaches are time-consuming & do not always work for huge PST files. In such situations, an independent PST compress program is a better choice.

Softaken Compress PST Software is a professional Outlook utility that helps compress PST files. This tool removes unnecessary space without any data loss and improves Outlook performance.

Key Features of Compress PST Software

• Safely reduces PST file size
• Keeps emails, attachments, & folder structure intact
• Easily compresses large PST files
• Works with or without Outlook installed
• Simple and user-friendly interface
• Supports all major Windows and MS Outlook versions

How does Compress PST Software work?

• Download & install the software.

• Browse and add the Outlook PST file.

• Select the compression option.

• Start the compression process.

• Save the reduced-size PST file.

The entire process is easy & requires no technical knowledge.

Conclusion
Outlook's manual process can work if your PST file is short & includes little data. If the PST file is really large or Outlook is running slowly, an independent PST Compress program can be a more reliable & secure option.

Regularly cleaning your PST file can make Outlook run faster & data management easier.

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