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How to Combine Multiple Smaller PST into one large PST?

sanjaykumar210
sanjaykumar210 Posts: 13
in Software Development

Outlook users often end up with multiple small PST files from old accounts, archives, or system backups. Over time, these files become difficult to track and manage. The SysInfo PST Merge Tool helps by allowing you to combine all of these smaller PST files into one large, consolidated PST. You begin by adding the PST files into the tool, previewing their structure, and then choosing how to merge them. The tool supports “Merge PST” mode, which combines similar folders like Inbox from each file, and “Join PST” mode, which keeps each PST as its own folder under one main file. It also allows merging specific items such as only contacts or emails. To keep your final PST organized, you can remove duplicates, apply date filters, skip attachments, and add password protection. Once everything is set, the tool generates a single, large PST that contains all your data in one place.

Comments

  • patricsamuel20
    patricsamuel20 Posts: 5

    You can easily combine multiple smaller PST files into one large, organized PST using the BitRecover PST Merge Tool. This software lets you merge PST files, folders, or items without data loss. Simply add your PST files, choose whether to merge, join, or add folders, and start the process. The tool preserves emails, contacts, calendars, and attachments while maintaining structure and metadata. It supports all Outlook versions and creates a clean, unified PST for easier management and access.

  • lilypitar
    lilypitar Posts: 2

    If you are looking to combine multiple small PST files into one large PST without difficulties, the DataVare Outlook PST Merge Expert Tool is an effective option often suggested in forums. With the ability to maintain of folder hierarchy, emails, attachments, contacts, calendars and other data integrity & it enables you to combine several Outlook PST files into a single combined file. With the ability merge selectively as needed & the tool is compatible with all Outlook versions and functions perfectly even with large sized PST. With only a few clicks even non technical users can add PST files, select merging settings and complete the process due to its straightforward interface, which makes it an effective method of optimizing Outlook data management.

    Visit here: https://www.datavare.com/software/outlook-pst-merge-expert.html

  • datafusion
    datafusion Posts: 3

    If you need to combine several smaller PST files into one unified PST, the easiest and most reliable way is to use a dedicated tool like Stellar Merge Mailbox for Outlook. It lets you merge multiple PSTs into a single, consolidated PST without duplicates and without risking data corruption.
    The software supports merging emails, contacts, calendars, tasks, notes, and more—even from password-protected PST files. Once merged, you can work conveniently from one large PST instead of juggling multiple files.

  • smithjens316
    smithjens316 Posts: 3

    If you want to combine multiple PST files into one without any duplicate emails, it’s better to use a professional tool instead of doing it manually. The manual Import/Export method in Outlook does work, but it takes a lot of time and doesn’t remove duplicates properly.

    I’ve personally used the Advik PST Merge Tool, and it worked really well for me. Here’s what it offers:

    Combine unlimited PST files into one single file

    Built-in option to remove duplicate items while merging

    Keeps your data safe and preserves the folder structure (Inbox, Sent, Drafts, etc.)

    Supports all Windows versions and every edition of Outlook

    Lets you merge emails, contacts, calendars, tasks, notes, and more in one place

    The process is very simple—just add your PST files, choose merge or join, enable the remove-duplicates option, and the tool handles everything automatically.

    If you don’t want to waste hours cleaning duplicates manually, this is a much faster and safer method. You can also try the trial version to check how well it handles your data before buying.

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