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Microsoft Outlook PST file too big

    Question

  • I am working in outlook 2010 and my pst file is too large and I am trying to change the Max File Size. I went to the microsoft Knowledge Base KB#832925 but the referenced registry entries are not there.
    Thursday, March 22, 2012 2:57 PM

Answers

  • That is because they don't exist by default and you need to create them manually.

    That said, are you sure that you are using a Unicode pst-file? What is the size of your pst-file now?

    If you are still using an ANSI formatted pst-file, then the Registry keys won't help you and you need to convert to a Unicode pst-file. See; http://www.msoutlook.info/question/115

    If you are using a hard drive which formatted as FAT32 instead of NTFS, the maximum file size limit is 4GB.
    See; http://www.msoutlook.info/question/70

    If it is indeed a Unicode pst-file on an NTFS drive, you might want to reconsider if you really want to make the file even larger or simply start with an additional pst-file; Home-> New Items-> More Items-> Outlook Data File...



    Robert Sparnaaij [MVP-Outlook]
    Outlook guides and more: HowTo-Outlook.com
    Outlook Quick Tips: MSOutlook.info

    Thursday, March 22, 2012 3:30 PM

All replies

  • That is because they don't exist by default and you need to create them manually.

    That said, are you sure that you are using a Unicode pst-file? What is the size of your pst-file now?

    If you are still using an ANSI formatted pst-file, then the Registry keys won't help you and you need to convert to a Unicode pst-file. See; http://www.msoutlook.info/question/115

    If you are using a hard drive which formatted as FAT32 instead of NTFS, the maximum file size limit is 4GB.
    See; http://www.msoutlook.info/question/70

    If it is indeed a Unicode pst-file on an NTFS drive, you might want to reconsider if you really want to make the file even larger or simply start with an additional pst-file; Home-> New Items-> More Items-> Outlook Data File...



    Robert Sparnaaij [MVP-Outlook]
    Outlook guides and more: HowTo-Outlook.com
    Outlook Quick Tips: MSOutlook.info

    Thursday, March 22, 2012 3:30 PM
  • Hi,

    Just checking in to see if the information provided by Roady[MVP] was helpful. Please let us know if you would like further assistance.


    Max Meng

    TechNet Community Support

    Tuesday, March 27, 2012 2:11 PM
  • Hi, 

    I'm marking the reply as answer as there has been no update for a couple of days. Please let us know if you would like further assistance.


    Max Meng

    TechNet Community Support

    Tuesday, April 03, 2012 2:44 PM