Outlook PST Duplicates Remover is one such program. The app detects and eliminates duplicate items from your Outlook. It is the most effective and time-tested method for removing Outlook duplicate items. It gives you numerous alternatives for finding duplicate things. It has a very simple GUI, anyone can easily handle and manage the software without any problem. It can help you get rid of identical files in Outlook without losing any original data. During the de-duplication process, the software effectively and complete get rid of identical files in Outlook without any changes and data loss. It was compatible with MS Outlook and Windows OS including Windows 11.