Outlook Data File Size Limit


  1. Posts : 2
    Windows 10
       #1

    Outlook Data File Size Limit


    I have a .pst file from Outlook 2003 that has reached its size limit of 2GB. If I import it into a newer version of Outlook will I be able to continue with that data file?

    If not, is there a way I can increase the size limit?

    Thanks.
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  2. Posts : 6,907
    windows 10
       #2

    Welcome to the forum. You can use it along with a new PST size limit depends on the version of Outlook
      My Computer


  3. Posts : 26,968
    Windows 10 (Pro and Insider Pro)
       #3

    Mikey0368 said:
    I have a .pst file from Outlook 2003 that has reached its size limit of 2GB. If I import it into a newer version of Outlook will I be able to continue with that data file?

    If not, is there a way I can increase the size limit?

    Thanks.
    From MS documentation:

    In Outlook 2003 and 2007, .pst files are in Unicode format and by default the limit is configured as 20 GB.
    What was the sign that you've reached limit size?

    Read more in this MS KB:

    Microsoft | how-to-configure-the-size-limit-for-both-pst-and-ost-files-in-outlook

    Edit: here is procedure to convert from ANSI (older with 2 GB limit) to Unicode version:
    How to Convert Old Pst (ANSI) to Outlook 2007/2010 (UNICODE) works with Office 2003 too Version
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  4. Posts : 2
    Windows 10
    Thread Starter
       #4

    AndreTen said:

    Edit: here is procedure to convert from ANSI (older with 2 GB limit) to Unicode version:
    How to Convert Old Pst (ANSI) to Outlook 2007/2010 (UNICODE) works with Office 2003 too Version

    That's the sort of thing I'm after, thanks.
      My Computer


  5. Posts : 26,968
    Windows 10 (Pro and Insider Pro)
       #5

    Mikey0368 said:
    That's the sort of thing I'm after, thanks.
    You're welcome. Can barely remember those days, when we were converting... Just follow the manual way, transfere folders so you'll keep your messages' dates.
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