You can use OSTtoPSTApp PST Duplicate Remover to remove duplicate PST emails without glitches or issues. It directly scans your duplicate PST emails and quickly removes them without affecting your original data. The tool supports all Windows OS versions like 11,10,8.1,8, and 7. Their few steps, you can easily use and remove duplicate PST emails, and you don’t need to install other applications. You can use their free trial without MS Outlook. This software has a simple graphical interface that is easy to use for technical and non-technical users to remove duplicate PST emails without technical skills.