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Dewarshi Jwala

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  1. What is the safest way to Merge Multiple PST Files without corrupting them?

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    2 comments  ·  Coach / Trainer - ABC Trainerize » Other  ·  Admin →
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    Dewarshi Jwala commented  · 

    Merging multiple PST files is doable, but you need to be careful about how you go about it because the process itself can introduce corruption if done wrong.

    Here are the safest approaches:

    1. Outlook's Import/Export Feature

    Go to File > Open & Export > Import/Export > Import from another program or file. This is the built-in way to merge PST files. It works well for smaller files but can be slow and occasionally throws errors with large or already-damaged PSTs.

    2. Use a Dedicated PST Merge Tool

    Third-party tools built specifically for this give you more control, like filtering by folder, date range, or avoiding duplicate emails. They also handle large files much better than Outlook's native option.

    Before you merge, keep these in mind:

    - Always back up every PST file before starting
    - Check each file for existing damage first, because merging a corrupted PST into a healthy one can spread the problem
    - Avoid merging files while Outlook is actively running
    - Keep individual PST sizes under 50GB where possible after merging

    The corruption risk during merging is actually higher than most people expect, especially when files are large or stored on a network drive. If you want to understand what triggers pst file corruption and how to spot it before it causes bigger problems, this guide covers it well. here's the detailed guide on pst file :-https://techerrorsolutions.com/what-causes-pst-file-corruption/

    Good luck with the merge!