How to Diagnose and Repair Common Outlook Corruptions

Outlook corruptions can cause a wide range of issues in your Outlook program, resulting in data loss and email delivery problems.

In this article, we discuss the most common types of Outlook corruption, how to diagnose them and the methods that can be used for repairing them.


In order to properly diagnose any potential Outlook corruptions, it is important to understand what type of issue you are dealing with. Generally speaking, there are two main categories of corruption – logical and physical. Logical corruptions occur when the internal structure of an Outlook file becomes damaged or corrupted while physical damage occurs when the actual hardware storing the file is damaged.

Repairing Logical Corruptions:

The first step in repairing logical corruptions is to use the Outlook Inbox Repair Tool (Scanpst.exe), which is included with Microsoft Office. This tool will scan your Outlook files and attempt to repair any errors found within them. If the repair is successful, you may be able to access all of your email again without any data loss.

If Scanpst fails to fix the corruption problem, then you should try using an advanced third-party Outlook PST recovery tool such as DataNumen Outlook PST Repair or Remo Repair Outlook PST. These tools are more powerful than Scanpst and can often recover emails that cannot be recovered by the Inbox Repair Tool.

Repairing Physical Corruptions:

Physical corruptions are more difficult to repair than logical corruptions and usually require professional help. If your Outlook files have been damaged due to a hard drive failure or other hardware-related issue, then you should contact a qualified IT technician to attempt the recovery process. In some cases, it may be necessary to use special tools such as data recovery software in order to retrieve lost data from a damaged hard drive.

Outlook is a powerful email client used by millions of people around the world. Despite its robust design, it’s not immune to corruption. Corrupt files can lead to data loss and unresponsive applications that can be difficult to troubleshoot.

With this guide, you’ll learn how to diagnose and repair common Outlook corruptions.

Diagnosing Outlook Corruption:

The first step in tackling an Outlook corruption is diagnosing the problem. Depending on the type of corruption, there may be different signs that you need to look out for. Some common signs include missing emails, error messages when trying to open an attachment or start up Outlook, “unknown errors” when sending emails, and even data loss.

In some cases, you may not be able to tell if there’s corruption present until you open the file, which can lead to further data loss and frustration. To avoid this, it’s best to take a proactive approach and look for any signs of Outlook corruption before opening your files.

Repairing Outlook Corruption:

Once you’ve diagnosed the problem and identified any potential corruptions, it’s time to repair them. Depending on how severe the corruption is, there could be a few different avenues that you should explore.

The first option is using Microsoft’s built-in repair tools. These can help fix minor issues without too much effort. You can find these tools under the “Advanced” tab in Outlook.

The second option is to use third-party software. These programs are designed to detect, diagnose, and repair corrupt files. They often come with extra features such as backup options and even automatic repairs for more serious issues.

Finally, if all else fails, you may need to reinstall or upgrade your Outlook version. This is a last resort approach since it can be time consuming and there’s no guarantee that it will solve the problem.


Outlook corruption can cause serious problems for users and can lead to data loss if not addressed quickly. Fortunately, there are methods available for diagnosing and repairing both logical and physical corruptions in Microsoft Outlook. By using the Outlook Inbox Repair Tool or third-party PST recovery software, most logical issues can be resolved without any data loss. For physical corruption, it is usually necessary to enlist the help of a qualified IT technician. Outlook corruption can have serious consequences if not addressed quickly. By taking a proactive approach to diagnosing and repairing any corruptions, you can ensure that your data remains safe and secure.