Your system is hanging and taking too much time due to duplicate PST emails. You should use "SameTools Remove Outlook PST Duplicate" and remove your duplicate PST emails without affecting the original data. This software removes a large number of duplicate PST emails and keeps your storage space, mailbox clean, and the emails folder. This software does not require installing any other application. It is capatible with all Windows OS versions like 11, 10, 8.1, 8, 7, and aslo works with ANSI and UNICODE. You can use a free demo, and after using this software, I'm sure your system will work properly.