The size of your Outlook PST file has grown, and you would like it to be smaller. Although it takes a long time, you can manually compress PST files. Your PST file can be compressed using this method, but it is tricky and dangerous because data loss is a concern. Try the Toolsbaer Compact PST Software for a simple and data-preserving way to compress your PST file. With no difficulty at all, this program compresses PST files to minimize file size and enhance Outlook's performance. Once the software has been downloaded and installed, all you need to do is load your PST file.

Read More: Free Outlook PST Compact Tool - Compress & Reduce Outlook PST File