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How to reduce the Outlook PST file size? - Printable Version

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How to reduce the Outlook PST file size? - Abhilashdogra - 06-30-2025

Got Outlook PST files taking up too much space on your system? The easy-to-use Aryson PST Compress Tool helps you reduce PST file size without losing any emails, contacts, or folders. You can compress attachments, remove unused space, and even work with password-protected PST files. What makes it great is that it supports both ANSI and Unicode formats and doesn’t need Outlook installed. You can compress multiple files in one go and choose a custom compression level that works best for you. Furthermore, it completes the job quickly even with large mail archives, so you get results fast.


RE: How to reduce the Outlook PST file size? - donnaperez - 07-09-2025

If your Outlook PST file has become too large and is slowing down Outlook, then definitely try the DataVare Outlook PST Compact Expert Tool. I used it myself, and my 12 GB PST file was reduced to 6.5 GB in just a few minutes, without any data loss.

User-friendly interface
Batch compressing multiple PST files
Option to save attachments separately
No technical skills required

This tool is best for those who want to make Outlook smooth and fast.
I had tried many manual methods, but the Outlook PST Compress tool seemed to be the easiest and safest.


RE: How to reduce the Outlook PST file size? - jenniferjones - 07-10-2025

I recently used Softaken Compress PST Software, and to tell you the truth, it is a very easy and reliable tool.

Converts large PST files to a smaller size in minutes
Also gives the option to save attachments in a separate folder
No data loss – everything is 100% safe
Compatible with all Outlook versions

If you are also troubled by the problem of frequent PST corruption or Outlook crashes, then definitely try this tool once.
I got great results!