Resolve Slow Outlook issues caused due to large sized PST files

Published: 11th May 2010
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Microsoft Outlook email client is one of the most extensively used email management application across the globe and used by millions of users across the continents. MS Outlook items including email messages, contacts, tasks, calendar items, notes, appointments, journals etc are stored in PST file format. Here the PST files acts as the repositories of MS Outlook email client. PST files have two file formats- ANSI PST (older MS Outlook format for versions 97, 2000 and 2002) as well as Unicode PST (newer MS Outlook format for versions 2003 and 2007).

In the older versions of MS Outlook, PST files i.e. ANSI PST files faced physical limit on PST file size which is upto 2 GB. If this file size limitation of 2 GB is crossed by the data in the file, then it might result in Outlook PST corruption. Therefore, you cannot store anything in Outlook PST file folders of size more than 2 GB. However, the increasing size of PST file also poses great side effects such as slow Outlook performance.

In order to prevent PST corruption, you can reduce PST file size. Performing pst compaction is always beneficial when your PST file is about to reach its threshold limit. You can compress Outlook PST file size before it exceeds 2 GB file size. Talking of Outlook PST file, about 50- 60% space is occupied by the email attachments which are embedded inside the PST file. Therefore, the best way to resolve slow outlook issue is remove these bulky email attachments. In order to compact your Outlook file, follow these two simple steps given below suggesting compress Outlook mailbox size:

1. Delete the stuff that you think is of no use any longer. This is the first step that you should perform for conducting Outlook PST file compression and i.e. to delete whatever you can possibly delete from the Outlook PST mailbox. Also, remember that even if you delete any item from your Outlook mailbox, it will be only moved to the Deleted Items folder which again will not free the occupied space until you delete the data completely from the Deleted Items folder. However, deleting the data this way will reduce the file size to only some bytes. The size of PST file will decrease but not to a greater extent. This will not resolve the slow Outlook issue, therefore, you need to compress your Outlook PST file.

2. One more option to reduce the size of PST file is by compressing the Outlook file by removing heavy email attachments embedded inside the PST file, using an effective third party PST compress and compact solution. Using this PST compress and compact tool, you can compress Outlook PST file in most efficient manner without hampering the formatting of the data in it.

Author of the article has expertise in the field of Data Recovery, email recovery, email migration, hard drive recovery and password recovery. He enjoys writing innovative and technology-based articles on various topics related to slow outlook, outlook duplicates remover, bkf recovery.

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