How can I split an Outlook .pst file?

Johan Zubeja October 3, 2012
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I have Outlook 2007 and it works well but the .pst File is large now and I want split it up. How can I do this?

  1. M B
    October 4, 2012 at 10:36 pm

    Archive your current emails in that .pst file and then create a new one.

    Splitting can be done by various tools but are not really good as when time goes by one of the files could become corrupt and then you cannot assemble the files to be your .pst file.

  2. GrrGrrr
    October 4, 2012 at 3:46 pm

    Create a new pst file, and then move the older emails to it.

  3. Saina Nehwal
    October 4, 2012 at 11:10 am

    You can use Kernel for split pst file tool for the purpose for splitting your large size pst file, you can get the demo version of the software and more info from

  4. unitex mac
    October 4, 2012 at 7:36 am

    Microsoft provides pst2gb tool. But it truncates the file rather reducing its original size. Microsoft also provides different service packs that enable Outlook to stop accepting any data after the file reaches to 2 GB. Though this prevents the file from being oversize, but you can hardly perform any mail related operations, such as to create calendars, save appointments, send or receive emails etc. Unless you remove large amount of data from or reduce its overall size, the problem continues.

    You can these methods to overcome the described file oversize issue:

    1-You can upgrade your ANSI formatted file to new Unicode format in Outlook 2003 or higher version.
    2-If this fails, you can use pst2gb tool. But this is not a preferred method as you lose some data permanently while file truncation.
    3. Use some professional tool
    You got various method and solution

  5. ha14
    October 4, 2012 at 7:24 am

    This MS KB Article will guide you

    Creates new PST files and copies there specified storage's content. Splitting is being performed while copying using size and/or year.

  6. Smith Sarah
    October 4, 2012 at 6:14 am

    Dear Johan Zubeja,
    To avoid corruption you must split large PST file in small manageable file.You can choose Stellar Phoenix PST File Splitter to split large file.This software works on all version of outlook product.
    To know more about how to split PST file,you can follow

  7. Alan Wade
    October 4, 2012 at 6:11 am

    There's a very good article on this by Leo Notenboom here:

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