Yes, you can eliminate multiple duplicate PST files from Outlook without any issue, and it also removes duplicate OST files. This utility can manage a large number of duplicate PST files and quickly remove them, and you don't need MS Outlook, and it supports all types of Windows OS versions like 11, 10, 8.1, 8, and 7. You can use this software without any technical skills and keep your mailbox clean. You can use their free demo version.
Visit here: https://www.osttopstapp.com/pst-duplicate-remover.html
Zora321 