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+--- Thread: Need Help to Split Up PST File Outlook Without Losing Data (/showthread.php?tid=74517)
Need Help to Split Up PST File Outlook Without Losing Data - vSoftware - 08-22-2026
Splitting a large Outlook PST file requires a careful approach to avoid unnecessary data-management problems. Dedicated software can split up PST file Outlook data into smaller PST files while keeping mailbox items organized. Instead of manually moving messages between multiple files, users can select the required PST and let the software divide it according to selected criteria. A dependable solution should preserve email content, attachments, folders, contacts, and other supported Outlook data. Before starting, make sure Outlook is closed and the original PST file is safely backed up. It is also useful to preview the mailbox structure and select the appropriate splitting option. Using reliable PST-splitting software can simplify the process and make large Outlook data files easier to store, access, and archive.
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RE: Need Help to Split Up PST File Outlook Without Losing Data - Alex_bill - 10-03-2026
If you need to split an Outlook PST file without losing data, first create a backup of the original PST and keep it unchanged until you verify the new files. For a large PST, manually moving emails can be time-consuming and may make it harder to maintain the original folder structure.
A dedicated PST splitter can help divide a large Outlook PST file based on your requirement. For example, GainTools Split PST provides options to split PST by size, year, or folder. This can be useful if you want smaller PST files by a specific size, separate older and newer Outlook data, or divide selected folders.
It supports ANSI and Unicode PST files. After splitting, open the resulting PST files in Outlook and verify emails, attachments, folders, contacts, and other required items before removing the original PST.