Outlook 2007 very slow downloading attachments.


  • Outlook 2007 is downloading very slowly.  A 1 MB file takes up to 2 hours to download through Outlook, but only a few seconds through webmail.  All updates were done, and then most removed (service pack would not remove)with no change at all.  This happened right after a Windows update, so that is why I tried removing the updates.  The IP says nothing is wrong.  A laptop attached to the same router has no trouble at all.  Uploads take only seconds for the same file.

    Any help would be appreciated.

    The OS is Win 7 Pro.

    Thursday, July 18, 2013 11:00 PM


All replies

  • Hii 

    This problem may arise due to oversize of Outlook PST. Heavy and large PST in Outlook may cause problems like slow performance and due to that you unable to access any thing like downloading , sending or receiving any file .

    Oversize Size of Outlook PST is major cause of slow performance . In such situation you need to separate your older data and save them at secure desired location at your own end. I advised you to use SysTools Split PST software that easily reduce you Outlook PST by splitting them into several smaller size and then you can save them at secure location.

    Friday, July 19, 2013 6:22 AM
  • Hi ,

    Many reasons could lead to its performance. You can try methods mentioned below:

    1. optimize your outlook:

        How to troubleshoot performance issues in Outlook 2007

    2. fix/scan PST/OST file through ScanPst.exe tool

    3. switch wireless to cable to check the result

    4. disable security programs, especially the mail scanner module.

    Best regards,

    Karen Hu

    Monday, July 22, 2013 3:20 AM
  • Don't worry, oversized 2 GB PST is the most common reason for PST file corruption. In this situation, You can very well take help of third party tool Kernel for Split PST. It software allows user to splitting all folders and items of MS Outlook PST file. To know more information click here:

    Thursday, November 21, 2013 5:47 AM