Microsoft Outlook 2003 .PST file will not grow above 2 GB

.PST files
Microsoft Outlook
Microsoft Outlook 2003
I am running Microsoft Outlook 2003 and my .PST file does not grow above 2 GB. I have read the following Microsoft Knowledge Base articles: I tried creating a new .PST file and converting it to a Unicode formatted .PST file. Then I migrated my old .PST file to the new Unicode .PST file and I still cannot go above 2 GB. It is my understanding that Outlook 2003 supports Unicode file types, but, in my case, it is not working.

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Microsoft Outlook 2003 can support Outlook PST files larger than 2GB  in a single PST file and you’re using the older ANSI format then there is only one tool I can think of that you can do with that Outlook PST, cut it down using the Microsoft PST crop utility.

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Get Microsoft Outlook PST email Recovery software allow to repair Outlook 2003 PST files. PST Recovery tool also permit to Split /Divide Large PST files by Size, Date, Folder into Outlook PST file format now easily import into MS Outlook 2019, 2016, 2013, 2010, 2007
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Discuss This Question: 3  Replies

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  • stephenlembert
    There has been a similar thread that covers this problem. You can have a look:
    1,135 pointsBadges:
  • Swati04
    Yes, Outlook 2003 do support UNICODE format and default limitation for same is 20 GB of PST file. But you can once check the enough space available in drive where you saved the PST file and also check the PST file size limitation from registry. You can change/increase the PST file size via registry. 

    1. Open the regedit.
    2.Goto HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook\PST
    3. Here you must create and set 2 new DWORD values (note that these values are case sensitive);

    Don’t set this higher than 4090445042 (decimal) or f3cf3cf2 (hexadecimal)
    Don’t set this higher than 4294967295 (decimal) or ffffffff (hexadecimal)

    The first value is how many MB a user can write to a pst-file. The second value is how many MB the system can write to a pst-file. This difference has to be at least 5% since there is more written to a pst-file than just user data.
    535 pointsBadges:
  • AndreaF
    You can always archive some email, so that you don't need to try and fit more than you should into your .PST file  or upgrade your outdated software
    11,330 pointsBadges:

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