Split PST File

Microsoft Outlook creates a PST (Personal Storage Table) file to save copies of e-mails, calendar entries, contacts, notes, appointments, and other similar data. As more and more data is added to the PST file, its size grows accordingly. However, an MS Outlook user needs to keep a regular check on the size of PST file and prevent it from exceeding 2 GB size limit. But in case, the file size has grown to more than 2GB, then the file becomes inaccessible. In such situations, the user encounters an error message that does not allow him/her to access the data saved in PST file components. To overcome such situations and to access the PST file data, the user needs to split the PST file by using an advanced third-party Split PST File application.

To elaborate the above scenario, consider a practical scenario wherein you encounter the below error message while attempting to access a PST file:

“This .PST is too large, delete messages”

After the above error message flashes on your screen, the data saved in the PST file becomes inaccessible. Additionally, the same error message pops up every time you try to access your PST file.

Cause

The root cause for the occurrence of the above error message is exceeding size of your PST file. Your PST file is more than 2 GB, which is not supported by MS Outlook 2000.

Note: Always maintain a regular check on your PST file size and never save e-mails with heavy attachments in your PST file.

Resolution

To get past the above error message and to access the data saved in PST file, you will need to divide your PST file into two parts. To do so, you will need to opt for a commercial Split PST software.

Such third-party tools use advanced splitting mechanisms that systematically Split Large PST File into smaller PST files. These tools are built with interactive user-interface, which makes them easy to understand and implement. Moreover, no prior technical skills are required to run these software.

Stellar Phoenix PST File Splitter is a wonderful tool that is used to Split PST File into smaller PSTs. The file can be divided either on the basis of e-mail ids or on the basis of date. The PST file splitter is a safe application that does not change the original structure of the PST file. Compatible with Microsoft Outlook 2007, 2003, 2002 (XP) and 2000, the tool supports Windows 7, Vista, 2003, XP, 2000, and NT4(SP6).

Microsoft Outlook 2007 and Microsoft Outlook 2003 impose a larger file size limit and a different file format (Unicode) for its personal folders. Also termed as PSTs, these files can now store more messages as compared to earlier American National Standards Institute (ANSI) format files used in Microsoft Outlook 2002 and earlier. But contrary to popular belief, not all accounts in Microsoft Outlook 2003 use the standard Unicode file format. The Internet Message Access Protocol Version 4rev1 (IMAP4) accounts and HTTP accounts in Outlook 2003 still use ANSI PST files and thus are susceptible to same file size issues as in earlier versions. Consequently, Outlook 2003 users need more management techniques to keep their PST files in size. One of the best remedy against increasing size of an Outlook 2003 PST in these accounts is to Split PST File.

For more understanding on the topic, let’s suppose that you use Microsoft Outlook 2003 with an IMAP account. Without realizing the fact that PST can store only limited number of e-mails, you continue receiving large number of e-mails. As a result, the PST file grows to a considerable size value. You start observing several performance issues such as, slow Outlook, delays in receiving and sending e-mails, and more. On investigating the issue, you find the PST file size large.

Note: A large PST is prone to corruption. An ANSI PST, which is used in IMAP and HTTP accounts of Outlook 2003 is limited to 2 GB and can get corrupt beyond this limit.

Methods of Recovery

Following are a few tips to isolate the specific issue:

(1) Upgrade to MS Outlook 2007 if you want to continue using an IMAP account, but with a PST of large size limit.

(2) Delete the unwanted e-mails, contacts, etc., and empty the ‘Deleted Items’ folder. Compact the PST file.

(3) Use a third-party utility to Split PST.

A commercial application to Split PST File can divide the PST file in several smaller parts, each with the competency to be used within Outlook. With their user-friendly interface, you may find these utilities easy to run.

Stellar Phoenix PST File Splitter is a safe utility to Split Outlook PST on the basis of e-mail ID and date. Supporting Microsoft Outlook 2007, 2003, 2002, and 2000, this utility has an interactive user-interface plus advanced options. The software can be used for PST of any size.

Microsoft Outlook PST files are either ANSI or Unicode formatted. Each e-mail you receive in MS Outlook gets piled up and adds to the existing size of your PST. Whether you are using an ANSI PST or a Unicode PST, a large PST is always prone to issues like, slow performance, file corruption, and other similar problems. Unicode PST files have much higher size limit (20 GB, by default) than its ANSI counterpart (2 GB) and thus are found to be less susceptible to corruption. Due to all these reasons, Outlook users frequently employ practices that help them to manage the size of their PST, one of the common being to Split PST File.

Large PST files have always been a topic of discussion among Outlook users. PST stored on a network drive with multi-user access has chances to grow more quickly. For example, consider an organization in which a server administrator decides to create a single PST and permits several Outlook users to have network access of the file and store the e-mails that they want to archive.

As a result, more and more e-mails are stored in the PST file on a daily basis. Consequently, the file grows to a considerable size. Now, when the connected users try to access the file, it is slow to load or shows abrupt symptoms.

Such situations often require solutions that can help users to manage the file size.

Important Note: Storing PST files on any shared network is not recommended by Microsoft. There have been many release notes on this. A network stored PST file can get corrupted.

How to Solve?

To manage the size of the PST file, stored on a network drive, you should move the file to a local computer and apply one of the below mentioned steps:

(1) Delete undesired e-mails, empty the ‘Deleted Items’ folder, and compact the PST.

(2) Create another PST and import e-mails to reduce the original file size.

(3) Use a third-party Split PST software. These utilities are designed to Split Large PST File and create several smaller PST files from the original file, each with valid content and format.

Stellar Phoenix PST File Splitter is the safest option that should be opted for splitting large PST files. It doesn’t change the original PST, but merely creates smaller PST files. It is a reliable Split PST File utility with a simple user-interface. It supports MS Outlook 2007, 2003, 2002, and 2000.

With each e-mail you receive or send in MS Outlook, its data file called PST keeps on expanding. A huge PST not only makes Outlook slow, but also makes the PST file susceptible to corruption. PST file corruption is more likely when it is an ANSI PST, that is used in MS Outlook 2002 and earlier versions. Apart from deleting the undesired items and compacting the file, another effective way to reduce the size of PST is to Split PST File.

Consider, an Outlook user suddenly encounters a bloated PST because of an unexpected event. He had a custom contact folder with few contact sub-folders. Further, he/she had installed a custom contact form and configured it as default for the rest of the contact folders. When he/she tried to add contacts to the contact folders programmatically, the PST file size grew dramatically to a great extent.

The above behavior might result if the size of contacts is too large or there are problems in the code that is copying those contacts to the contact folder of Outlook PST.

Solution

To reduce the overall size of a bloated Outlook PST, you should adopt one of the following measures:

(1) Open Outlook PST and check e-mails, contacts, etc. that you find unnecessary and can be deleted. Move those items to Deleted Items folder and empty the folder. Since Outlook PST is a database, deleting the items will have minor effect on the file size. So, you need to compact the file after deleting the items.

(2) Create a new PST and move some of your items to this new PST. The process is termed as PST archiving and is effective when the PST size is not too large.

(3) Use a Split PST Software and divide your large PST file into several smaller files. Split PST utilities are safe to use with their read-only algorithms and can work for any size of Outlook PST.

Stellar Phoenix PST File Splitter is a secure utility that is used to split a large Outlook PST created with MS Outlook 2007, 2003, 2002, and 2000. This Split PST File software can divide the file on the basis of e-mail ID and message date and is compatible with Windows 7, Vista, XP, 2003, and 2000.

Virus Removal

Having a large Outlook PST file is never recommended. Not only does it increase the chances of PST corruption, it can also make Outlook slow while performing operations like, sending e-mail, receiving e-mail, or even while opening an e-mail. In Outlook 2007, this slow behavior is most likely to occur when the file is 4 GB or larger in size. Owing to this, Outlook starts behaving abruptly and sometimes, throws error messages. One of the most commonly adopted solutions in this respect is to Split PST File. Certainly other options are also available, including deleting unnecessary messages and compacting PST file.

The slow behavior in MS Outlook 2007 can also be attributed to some computer-related concerns. Many Outlook 2007 users often report that they receive the below or similar kind of error message when working with the application or while opening it:

Task ‘task_name’- Sending and Receiving’ reported error (0×8007000E) : ‘Out of memory or system resources. Close some windows or programs and try again.’

The ‘task_name’ refers to the name of task that Outlook is unable to complete.

Microsoft Outlook 2007 might show ‘Out of memory’ errors in the following two situations:

(1) Your computer is short of resources. It does not has required memory or there exists some motherboard issues.

(2) MS Outlook is using a very large PST file.

Tips of Recovery

To troubleshoot the behavior, you need to check if other applications are also running slow. If yes, then the problem is related to your computer, and not with your Outlook application. You can increase the system memory and also try replacing the motherboard.

If implementing the above system changes doesn’t bring any considerable improvement in Outlook’s performance, you need to reduce the PST file size by one or more of the below tips:

(1) Delete undesired e-mails, empty the ‘Deleted Items’ folder, and later, compact the PST.

(2) Archive your PST by moving old e-mails to a different PST.

(3) Use a Split PST software to divide the large sized PST file into smaller PST files. To Split Large PST File, you need to take aid of an exclusive and safe third-party utility.

Stellar Phoenix PST File Splitter is an advanced utility that can split Outlook data file (*.pst) on the basis of e-mail ID and message date. This Split PST File software supports MS Outlook 2007, 2003, 2002, and 2000 and is effective in preserving the originality of file data. The software can divide a large PST into small PST files, which can be directly imported into Outlook.

Technical support Computer Repair

Is your PST taking too much of time to synchronize? Then, you have come to the right place. Continue reading why this can occur and how to solve the issues. An Outlook PST can be synchronized on two different devices using various applications that allow syncing PST data on another machine and keep each copy in perfect agreement with each other. But various issues, including a large sized PST, can slow down this process. The article discusses few such problems and the possible solutions to recover. However, for a large PST, one of the solutions can be to Split PST File.

Here are some considerations that if applied properly can help you to get out from slow PST sync issues:

(1) Many applications, such as ActiveSync, update the entire e-mail folder hierarchy each time when you sync PST, irrespective of whether a particular folder has been synchronized or not. So, if the file contains too many folders, it can slow down your PST to sync. Thus limiting the number of folders in PST can be a good practice for gaining a quick sync.

(2) Sometimes, one or more corrupted PST objects, for example tasks, create problems when syncing PST. Sync process particularly hangs when trying to update these items. Thus you need to recognize and delete these particular items.

(3) Excess number of empty files in \Windows\Temp folder on either of the devices to be synced can also cause performance issues while syncing PST. To resolve the issue, you should reset the device(s) and then delete these blank files.

(4) A large PST is one of the prominent causes of decelerating PST synchronization. The entire size of PST file is attributed to all the emails, notes, calendars, contacts, and other items it contains and grows rapidly with the use of MS Outlook. To keep it small, you should keep on deleting the unnecessary items and compacting the PST. Another method you can opt for, is to Split Large PST File. There are several Split PST utilities in the market that allow you to divide the large PST file into smaller parts.

Stellar Phoenix PST File Splitter is a safe product that splits an Outlook PST created with MS Outlook 2007, 2003, 2002, and 2000. This Split PST File software can divide the file on the basis of e-mail ID and message date. The tool is compatible with Windows 7, Vista, XP, 2003, and 2000.

Virus Removal

A Microsoft Outlook PST can grow considerably large because of continuous incoming and outgoing e-mail messages. An ANSI formatted PST is allowed to have utmost 65, 535 items per folder and maximum size of 2 GB. Two prime solutions to handle such problems include, to Split PST File or to delete the undesired and large-sized e-mails. Often, Outlook e-mails consist not only text, but also heavy attachments. These e-mail attachments can be large enough to contribute a great amount to the overall size of Outlook PST. Finding these attachments quickly can help a user decide upon whether to delete or keep them.

Microsoft Outlook 2003 includes a Search Folder under the name ‘Large Mail’ that can be used to locate large e-mail attachments and help you to delete them. This folder contains all those messages, which are larger than 100 KB in size. Outlook calculates the complete size of an e-mail message as sum of size of all text, graphics, and attachments, that are included in the message.

To locate the folder, you need to:

(1) Go to ‘Navigation Pane’.

(2) Expand the entry named ‘Search Folder’.

(3) Click ‘Large Mail’ search folder.

If you cannot see any such folder, you can manually create it:

(1) Click ‘File’ menu and point to ‘New’ in ‘Mail’ tab.

(2) Click ‘Search Folder’.

(3) In section named ‘Organizing Mail’ of ‘Select a Search Folder’, click ‘Large Mail’.

After finding the e-mails with large file attachments or graphics, you can delete them. Keep in mind to empty the ‘Deleted Items’ folder and then compact the PST file after this. The size of PST will remain the same if you do not compact it.

Another solution to decrease the PST file size and keep it manageable is to Split PST file. This is possible using a third-party utility to split the file. Designed to perform file split procedures, these utilities can Split Large PST File without any hassle and give smaller PST files, each usable within Outlook.

Stellar Phoenix PST File Splitter is a risk-free solution to divide a large sized PST into smaller, PST files. Supporting MS Outlook 2007, 2003, 2002, and 2000, this software can Split PST File with few simple clicks. The tool splits the PST file on the basis of e-mail ID or date.

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As the size of PST store increases, performance issues like, slow e-mail delivery, synchronization delays etc. become more noticeable. If PST is stored on a network share, it can cause the whole network connection to slow down. However, storing PST is not recommended on any network drive, but if you have still stored a large PST on network, it is advised to relocate it to a local computer and Split PST File to prevent further issues.

Consider an Outlook user who stores PST file for network share. The user doesn’t realize that the file has grown to a considerable size and is in need of maintenance. But one day, he starts observing several performance issues when accessing the network connection. Other users connected to the network too face similar problems, while accessing the network.

This is a typical example of issues that can root from a large sized PST file. An Outlook user should keep in mind that PST is not meant for network sharing. Accessing PST in this way not only brings performance issues, but can also cause the file to get corrupted.

Solution

To deal with such problems:

(1) User needs to move the file from network share and store it on a local computer.

(2) After moving the file, its size must be taken care of. This can be done by:

(2.1) Deleting the unnecessary e-mails and other PST objects and then compacting the file. The file size will remain almost the same if you do not compact the PST.

(2.2) Creating a new PST to move messages from the original PST. The process is known as PST archiving.

(2.3) Using a Split PST software divides PST contents in different PST files with small sizes.

Third-party utilities are risk-free solutions to Split Large PST File. These tools are designed for easy PST file maintenance and do not harm the integrity of file and its data. Moreover, you can use these software for any size of PST.

Stellar Phoenix PST File Splitter is a safe product that splits an Outlook PST created with MS Outlook 2007, 2003, 2002, and 2000. This Split PST File software can divide the file on the basis of e-mail ID and message date. The tool is compatible with Windows 7, Vista, XP, 2003, and 2000.

Microsoft Outlook features an IMO (Internet Mail Only) mode, that supports accounts like, POP3, HTTP, and IMAP. In this IMO mode, Outlook creates a PST (Personal Storage Table) file to store the local copies of all e-mails, notes, contacts, calendars etc. Depending on the file version in use, this PST can be limited to different size limits. In Outlook 2003 (except in IMAP4 and HTTP accounts) and Outlook 2007, the default limit is 20 GB, while in other versions, the file is limited to grow up to only 2 GB. Thus an Outlook user is advised to manage his/her Outlook PST file on timely basis, or, it may call for solutions like Split PST File.

An Outlook PST that is used in IMO mode can behave unexpectedly and cause different issues, such as:

(1) Outlook takes considerable time to load.

(2) When you switch between the folders (for say, from Inbox to Sent Items), Outlook hangs momentarily.

(3) You find issues when importing or transferring a large sized PST file.

Also, a large PST is susceptible to corruption as compared to small-sized PST.

Solution

(1) An Outlook user using IMO mode needs to manage the PST file size regularly. Following are some basic solutions to reduce the overall size of file:

(2) Delete the undesired and unnecessary e-mails as soon as you notice them. You also need to compact the file as PST is a database and deleting the messages will have no impact on its size. To compact the file, click File | Data File Management and select your file, click ‘Settings’ and then ‘Compact Now’.

(3) Archive your PST. You can archive the original PST for its old e-mails or on the basis of senders’ e-mail IDs.

Split the PST file. For this, you need to use a third-party Split PST software.

A commercial PST File Splitter is an easy-to-use application that can split a large-sized PST file, safely and easily. These applications use effective and safe procedures and divide the file into smaller PST files, by creating new files, and leaving the original file as-is. You can install them using some simple steps.

Stellar Phoenix PST File Splitter is an advanced utility that can split Outlook data file (*.pst) on the basis of e-mail ID and message date. This Split PST File software supports MS Outlook 2007, 2003, 2002, and 2000. The software can divide a large PST into small PST files, which can be directly imported into Outlook.

A Unicode PST (Outlook 2003 and 2007 default PST) supports features like large file size and support for various character set. The Support for different character set gives flexibility over language control, while the latter one is somewhat more important. The increased file size limitation in Unicode PST is for users who cannot keep a regular track of errors and issues occurring due to 2 GB file size limitation that is imposed by an ANSI (American National Standards Institute) PST. Also, an ANSI PST that goes over 2 GB in size is vulnerable to corruption risks and various issues that ask to Split PST File. That’s the reason why most of the Outlook users prefer migrating to this new format of Outlook 2003 and 2007.

Outlook 2003 PST

The accounts of IMAP (Internet Message Access Protocol) and like Hotmail or MSN in Outlook 2003 still require an ANSI formatted PST, however the default is always a Unicode. So, issues related to PST file size depend on the account in use.

Note: You cannot convert an ANSI PST directly to Unicode or vice-versa. To do this, you need to copy, move or export the data to the new data file.

PST File Size Issues

The size related problems of ANSI formatted PST have already been depicted. A Unicode PST also faces such issues, though not similar. No doubt, a Unicode PST is the best solution in an enterprise environment as it resolves many issues that otherwise can force to spread the data across multiple PSTs. But simultaneously, it raises other problems like:

(1) User experiences poor performance when accessing a large PST . A PST till 2 GB provides good user experience, while the one between 2 GB and 4 GB is strictly dependent on hardware. A PST above 4 GB shows short pauses and the frequency of these pauses increases when the file goes above 10 GB.

(2) Considerable requirement of time when restoring from a backup of such PST.

(3) Management issues.

Solution

Storing the PST data in different PSTs, rather focusing on a single is a good practice to avoid the issues. So, you should keep on deleting the undesired messages from a PST and compacting it later. Also, you can opt solutions like PST archiving or using a commercial tool to Split PST. There are various tools available that can Split PST File and keep its size under control.

Stellar Phoenix PST File Splitter is an advanced utility that can split a large PST into smaller, Outlook-usable PST files. The tool can Split PST for MS Outlook 2007, 2003, 2002, and 2000. The software provides two criteria to split the PST file: by e-mail ID and by date.

The file size limitation of PST in Outlook 2003 depends on the e-mail account in use. However, by default, Outlook 2003 PSTs are Unicode formatted, but when using an IMAP4 (Internet Message Access Protocol Version 4rev1) or HTTP (Hypertext Transfer Protocol) account, PST files do not use this format. Thus the 2 GB size limitation, which exists in Outlook earlier versions because of ANSI (American National Standards Institute) format, is still the same in these accounts of Outlook 2003. Also, even if the Outlook 2003 uses a Unicode PST, the file size issues create considerable problems when running the application. There are several steps to manage the Outlook 2003 PST size, one of them being Split PST File utility.

Outlook 2003 PST file size can increase considerably because of regularly incoming and outgoing messages. If you use Outlook 2003, you might experience any of the below issues due to large PST size:

(1) E-mails take time to download or send.

(2) Outlook hangs when performing usual tasks.

(3) Message copy operation from one folder to another is slow.

(4) PST either fails to synchronize or behaves sluggishly.

Apart from these symptoms, the general responsiveness of the application also slows down. These situations cause PST file size management necessary. Following are some tips that you can apply to an Outlook 2003 PST file for managing its size:

(1) Delete the undesired PST items and empty the ‘Deleted Items’ folder if it doesn’t contain any required data. Finally, compact your PST as it will not free up the occupied space without compaction.

(2) Use the Outlook archive feature to move the items to several new PST files. However, the process can be troublesome if your PST is quite large in size.

(3) Use a third-party PST File Splitter tool to split a large PST file in just few clicks.

A Split PST utility is safe to use and employs high-end scanning algorithms to divide a large PST into several smaller PST files. These software are easy to install and simple to operate. You can run these products for PST of any size and format.

Stellar Phoenix PST File Splitter is a powerful application that incorporates safe, yet efficient, scanning algorithms to split a PST file. The Split PST File software supports MS Outlook 2007, 2003, 2002, and 2000. It creates several new PSTs on the basis of e-mail ID or date (as specified by user) while keeping the original PST intact.

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Microsoft Outlook 2002 and earlier versions have a 2 GB file size limitation for personal folders (.pst files). Once these files reach or go beyond this value, PST complain of being unusable by the user. Though this limitation no more exists in Outlook’s later versions, but Outlook performance and data management issues are still needed to be taken care of. If required, it is however recommended to have multiple PSTs instead of piling messages in a single one. To serve the same purpose for an already large PST, Split PST File is the option.

To exemplify such problems with a large PST, suppose you use MS Outlook 2002. You keep on receiving emails and storing other items in a single PST (the default PST) while ignoring the fact that this practice can lead to further issues. At a particular point, when you attempt to save an Outlook item such as appointment, contact or task, you cannot do so. Additionally, you receive an error message as stated below:

“The file file_name has reached its maximum size. To reduce the amount of data in this file, select some items that you no longer need, then permanently (shift + del) delete them.”

The error shows that PST has grown to its maximum file size value and cannot accept more items. The error is received when Microsoft Office XP Service Pack 1 is installed. Installing the service pack for Outlook 2002 causes the application to stop saving more data after the PST has reached to 1.82 GB size value. This prevents against corruption that might occur to a PST above 2 GB.

Few suggestions to deal with such problems are:

(1) Open the PST and delete the items that are no longer required. Empty the ‘Deleted Items’ folder and compact the PST. Compacting the PST is essential to discard the unused space of the file.

(2) Create a new PST and import data from the original PST to it.

(3) Use a Split PST software helps your PST to divide in smaller, Outlook-usable parts. These Split PST File utilities are safe and interactive to use that solve all the issues related to a large PST.

Stellar Phoenix PST File Splitter is a powerful utility designed to split a large PST on the basis of e-mail IDs and date. The safe and effective tool can Split PST using appropriate procedure. The tool supports MS Outlook 2007, 2003, 2002, and 2000. The software divides the PST into parts that can be individually imported for further use in Outlook.

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A large sized PST can introduce several performance issues for Outlook. Also, such files are more prone to corruption due to their file size limitation. Microsoft Outlook exhibits unusual behavior and momentarily stops responding while typical mail operations when its PST grows large in size . Thus, to reduce, though not totally eliminate, the impact of large PST, Outlook 2003 brings in a new data structure for these files. However, performance and operational issue still persist. To solve them, you are suggested to Split PST into several smaller .pst files.For instance, you might receive the below error code while normal operations with Microsoft Outlook:

“The messaging interface has returned an unknown error. If the problem persists, start Outlook again.”

This error is typically encountered when you try checking for a new email message, creating or deleting a Calendar entry, deleting an item from Inbox and Contacts or sending a fax. These operations fail after you receive this error message.

Cause

The error occurs typically with a large PST file size. If the PST has crossed the built-in size limit, it may create the situations, such as described above.

Solution

You should consider applying these suggestions to isolate the given problem:

Microsoft Outlook includes a feature called ‘Allow upgrade to large tables’ that you can use to increase the limit enforced on number of messages contained in a folder and number of folders contained in a file of PST
Reduce the PST file size by emptying the Deleted Items folder
You can create a new PST file and import your messages from the original PST file
Use third-party PST File Splitter utilities that could split the large size .pst file into several smaller .pst files

Split PST utilities are feature-rich applications that use systematic approach to divide a large PST file. These software are quite easy to use because of the interactive design they provide. Such tools serve as suitable applications for creating smaller .pst files from a single PST. Moreover, they are safe to use and perform non-destructive operations.

Stellar Phoenix PST File Splitter is a high-end tool known for splitting a PST file into multiple .pst files. The tool uses advanced, yet safe, algorithms. It is a secure PST File Splitter that provides easy to understand view and powerful features. The tools allows splitting the file via two criteria: by e-mail ID and by date. It supports Outlook 2007, 2003, 2002 and 2000.

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An Outlook PST keeps on piling with messages. This increases its size and can ultimately cause several performance and email related issues. In addition, Microsoft Outlook 2002 and its earlier versions restrict the PST file size to a default value of 2 GB. Though this file size value has been increased to 20 GB in its later versions, but performance issues are not an exception. Thus, you are suggested to always maintain the PST file size. The recommended steps are to keep deleting the undesired email messages, compact and archive the PST file and perform PST Split.Consider an instance when you try to import your PST using import wizard. The operation may fail and you may receive some errors, similar to below:

“Unknown exception occured, leaving the Migration process.
Exception Address: 0×40191b”

Cause

The above symptoms can occur if the PST is of quite large size, usually consisted of thousands of email messages and several number of folders.

Solution

You can try these suggestions to overcome the issue of large PST while importing:

You should first the check the file for consistency. A large PST has high odds to get corrupt. If you can open the file, you can delete the unwanted email contents from it. You can also empty the Deleted Items folder and later compact the file. PST doesn’t frees up the space until you compact it.
You can create several new PSTs and drag the items to them. In this way, you can divide your large PST into smaller ones according to your requirements.
The above method may not be viable to a PST consisting of thousands of emails. To divide such PST easily and safely, you should use a PST File Splitter.

The third-party PST Split applications prove to be most suitable tools to divide a single PST into several smaller parts. These tools guide you through an easy installation procedure and instruct easy steps to split the PST file. You get few smaller files, each of which is directly usable with Outlook.

Stellar Phoenix PST File Splitter is an advanced and comprehensive PST File Splitter with interactive design and safe procedures to split the file. The tool supports Outlook 2007, 2003, 2002 and 2000. It incorporates suitable algorithms to perform split PST operation. The software enables to view messages in 3-pane structure, which resembles the look of Outlook.

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The best practice to prevent Outlook PST from corruption, avoid performance issues and conserve hard disk space is to delete unwanted email messages. You can also archive the file, which typically serves as the backup process for your old emails. At times, you observe that though you apply these measures, but the overall PST size remains unaffected. As a result, the problem you were encountering before deleting or archiving the email messages doesn’t fix. The reason for this could that you haven’t compacted the file. However, rather than deleting or archiving the PST contents, you can simply choose Split PST software that split a PST file into several smaller .pst files without any modification to original data.For example, suppose your Outlook PST file reaches approximately to its maximum size value. Consequently, you decide to empty the Deleted Items folder, remove unimportant emails and items and/or archive your PST file. You check the file size and observe that none of these methods have effect on the total file size of PST. The file size stays the same.

Cause

The above behavior occurs when you don’t compact the target PST file. Outlook doesn’t free up the actual space until you compact it.

Solution

You should compact the PST file manually or by running automatic background compaction. The PST to be compacted must be equal to or greater than 16 KB in size value and must have 16 KB of free space since the last compaction.

Background compaction runs automatically once it finds CPU free of other tasks and Outlook running. However, to start the process manually, you should click File | Data File Management and select your PST file. You can then click its Settings | General | Compact Now and click OK.

To reduce the PST file size, one of the easiest method is to Split PST File. This is possible using third-party tools designed to use safe procedures that can split an Outlook PST file. Split PST utilities provide you graphically rich look and advanced options that enable easy file split.

Stellar Phoenix PST File Splitter is a comprehensive tool that splits a large .pst file on the basis of sender’s email ID and date. It is compatible with Outlook 2007, 2003, 2002 and 2000. It is an advanced Split PST File utility that ensures complete security of your data. The tool is competent to split the file into various small .pst files, each usable directly with Outlook.

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