Your system is hanging becouse of multiple duplicate PST files in your system, and you can remove them. You can use "SameTools Remove Outlook PST Duplicate." This software can remove duplicate PST files like emails, contacts, etc. Duplicate PST files are immediately scanned and removed without the need to install extra software, and save your important data. Supports all Windows OS versions, including 11, 10, 8.1, 8, 7, and ANSI and UNICODE. Try their free demo without technical skills.

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