How to Safely Reduce PST File Size Without Losing Any Data?

I have been using Microsoft Outlook for a few years now, and my PST file has grown large — it is starting to slow things down. I am worried about potential data loss if I try to reduce the file size on my own. Can anyone suggest safe and effective ways to reduce the size of a PST file without risking important emails, contacts, or calendar items? Free methods would be preferred, but I am open to all suggestions that ensure data safety.

  • If your Outlook PST file has become very large and Outlook has started to slow down, I would recommend that you try DataVare Outlook PST Compact Expert Tool. I have used it myself, and it is a very easy and safe tool. With its help, I was able to shrink my large PST file significantly without losing any data.

    No data loss
    User-friendly interface
    Works without Outlook installed
    It can also compress multiple PST files in a batch.