PST file

Microsoft Outlook is widely used for email communication and to manage personal information. It has so many cool features and Outlook is the priority for professionals and organizations. The main component for Outlook is a PST file. This is used to store whole Outlook data which means all emails, calendars, contacts, tasks, and other information are stored in PST files.

They can easily become corrupt. This can result in data loss. It can also lead to reduced functionality.

Step-by-Step Guide to Prevent Outlook PST Archive Corruption

Read on to understand and follow the detailed steps to prevent PST corruption

  1. Do not exceed the file size limit

Starting with Outlook 2010, users can choose to store up to 50GB of data. The old versions of Outlook like in 2003 and 2007 are allowed to store data in 10 GB of storage, while in Outlook 2002 and earlier are only allowed up to 2 GB of data storage. Saving the 10 GB of data to different locations is difficult it is better to save 50 GB of data in a single location. 

  • Big data directly affects performance. Most tasks in Outlook will be slow due to large files
  • Large files can be damaged easily
  • Minor corruptions in small files can be repaired by Outlook or scanpst.exe, but if the PST is large, the repair will take a long time.

Tip: If your PST file is large, split or compress your PST file to avoid corruption

  1. Save PST of previous versions as < 2 GB

PST file size in Outlook 2002 and previous versions is limited to 2 GB, it is recommended to save the file located in version 2002 or previous versions save less than or equal to 1.5 GB. previous versions Release version PST is protected from corruption.

If efficiency depends on big data, it is better to keep data small and prevent corruption.

  1. Bulk email processing is not supported

Outlook does not support bulk email processing. MS Outlook can bog down many tasks. Users are forced to close Outlook, which can cause PST corruption. To avoid this, work on fewer than 1,000 emails at a time, even if you’re required to do the same work on 10,000 emails. It is better to take a step and avoid mistakes rather than fix the corrupt PST file.

If your Outlook junk files contain more than 10000 emails. Instead of deleting them at once try to delete them in chunks like delete 1000 or less than this so that your outlook will be prevented from corruption.

  1. Outlook is still working, Do Not down the System

When the user quickly shuts down the system without closing the application, the PST file entered by Outlook at a particular time is more likely to be affected.

The best way to check is to open Task Manager and check if Outlook.exe is executing. Do not turn off the system until the process is completed.

  1. Do Not Store PST on a Network Drive or Server

PST files are intended for local storage only. Storage on a server or network drive may cause PST corruption because the network environment does not support access to PST files.

  1. Regular Backups Of PST File

You may need to back up every week or two to keep your data safe on your local server. Even if the PST is damaged, the data can be restored using the backup file.

  1. Don’t Let Outlook Add-Ins Corrupt PST

Sometimes, faulty Outlook add-ins that are not created correctly can cause PST archives to get corrupted. In this case, disabling the plugin is the only solution.

  1. Be Aware of the Antivirus Software You Installed

Sometimes the culprit is the antivirus software installed on your system. Does not protect your PST from damage and deletes PST.

Method To Prevent Outlook PST File Corruption

Two effective and very easy-to-use methods that will help you to prevent Outlook PST file corruption.

  1. Compress your PST File:

To deal with oversized PST file errors. Compressing your PST file is the best solution. SysTools PST Compress Tool is a software that is designed to compact your PST file by removing the attachments from the email of Outlook. It has so many features like skipping and removing duplicate items from the PST file.

Remove attachments by using the date filters so you can easily remove attachments from a particular date and time.

  1. Split Your PST File:

An alternative method to prevent Outlook PST file corruption is to split large PST files into smaller parts. SysTools PST Splitter Tool which helps you to protect your PST file from corruption. You can create a single file for each folder or one file for all folders. You also get the option to split the large PST file without any size limit. 

The above-given methods will help you to prevent your Outlook PST file from being corrupted. And both of the methods are Experts suggested. 

Methods to repair corrupted PST files

This section will provide you with various effective methods to repair the corruption in PST files in a few steps. These are:

Method 1. Inbox repair method:

This Inbox Repair tool. Also known as Scanpst.exe utility. It’s an additional possible alternative. Another option at your disposal. Scanpst.exe is a free utility. Microsoft gave it to recover PST files. These files can be corrupt or damaged. However, it sounds distressing. There are times when this tool fails. It’s unfortunate to realize this. Yet it is reality. Scanpst.exe only sometimes proves effective.

Steps of the ScanPST method
If the account utilizes POP or IMAP settings, then must follow these steps:

  1. Firstly, locate the path in File Explorer:
    C: \Program Files(X86) \Microsoft Office\root\Office16
  2. Now, Inside the folder, find and double-click SCANPST.EXE
  3. Click Browse, find the PST file you want to repair and select the Start button.
  4. Check the checkbox to create a backup. if required before the repair process and click on the Repair button.

Method 2. Repair Corrupted PST Files Using an Automated Tool

In extreme corruption instances, the Inbox Repair tool may fail. It may not even function. If such a circumstance arises go for expert tactics. Many vendors exist in the market. They offer repair tools; a free demo version is included. SysTools PST Repair Tool is one of these vendors. 

Before buying software you should get a demo version. That too for free evaluation. Try using the demo. Through this action, data preview is possible. This data can be retrieved from a corrupt PST file. Feel satisfied with the results? This is the deciding factor for purchasing the tool. Only if you find this happens, you should buy the software.


In this blog, we have discussed the precautions to prevent Outlook PST File Corruption. A Step-by-step guide to protecting your PST file data. Then we brief you about the tools that are used to prevent your PST file corruption. We also talked about the situation where your PST file is corrupted and discussed the methods to repair your PST file using manual and professional methods. Manual methods are quite complicated and the chances of data loss are high. On the other hand, automated methods are more secure and easy to use.

By Anurag Rathod

Anurag Rathod is an Editor of, who is passionate for app-based startup solutions and on-demand business ideas. He believes in spreading tech trends. He is an avid reader and loves thinking out of the box to promote new technologies.