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Why And How to Delete Corrupt OST File in Outlook?

Published On - December 20, 2022 by Henry Bray |

Reading Time: 3 minutes

Outlook users are quite familiar with the term “OST corruption.” In fact, while dealing with the Outlook for Windows or Mac application, users take a lot of precautions to prevent any accidental data corruption. But what should you do if your offline OST files somehow get corrupted? In such situations, permanently deleting the OST files is the perfect solution. Today, we’ll talk about how to delete any corrupt OST file in Outlook.

What is a corrupted OST file?

An OST file, also known as an Offline Storage Table file, is a local copy of your mailbox that stores on your computer. It is used in Microsoft Outlook to allow users to access their email, calendar, and contacts even when they are not connected to the internet.

A corrupted OST file can occur if the file becomes damaged or is otherwise unable to be read by Outlook. This can happen for a variety of reasons, including hardware or software issues, power outages, or problems with the Exchange server. If an OST file becomes corrupted, it can cause Outlook to malfunction or display errors when trying to access the file.

How do OST files get corrupted?

OST files can become corrupt for a variety of reasons, such as power outages, system crashes, and malware infections. Let’s learn them one-by-one!

  • Sudden power failure or shutdown
  • System Hardware issues (like; hard drive failure)
  • Network issues that disrupt communication between the Exchange server and the local computer
  • Virus or malware infection
  • Incorrectly closing Microsoft Outlook while the OST file is in use
  • incorrect system or Outlook configurations

If an OST file becomes corrupted, it may be difficult or impossible to access the data it contains. In some cases, you may be able to repair the OST file using Microsoft Outlook’s built-in repair tools or by using a third-party OST file repair tool. However, if the damage is severe, you may need to recreate the OST file by synchronizing with the Exchange server again.

What errors occur in Outlook as a result of OST corruption?

A corrupt OST file can cause Outlook to crash or freeze, and it can prevent you from accessing your important email and other data. Besides, it causes a lot of unwanted errors that have listed as follows:

  • Outlook crashes randomly.
  • cannot open the Outlook data file.
  • Data sync issues between Outlook and the Exchange server
  • Inability to send or receive emails.
  • Corrupted contacts and calendar entries
  • Lost IMAP and POP3 settings and configurations.
  • Outlook fails to start and displays an error message.
  • Outlook takes a long time to start.
  • Error alerts suddenly pop-up that show the OST file is inaccessible.
  • Blank folders with no content appear in Outlook.

So, it is important to delete a corrupt OST file in Outlook to prevent these issues and keep your email program running smoothly.

How to Delete a Corrupt OST File in Outlook?

  • Close Outlook and any other programs that may be using the OST file.
  • Locate the OST file on your computer. OST files are commonly saved in the C:\Users[Your_Username]\AppData\Local\Microsoft\Outlook Delete Corrupt OST File
  • Rename the OST file by adding the word “old” to the end of the file name (e.g., “Outlook.ost” becomes “Outlook.ost.old”). This will allow you to keep a copy of the OST file in case you need to refer to it later.
  • Open Outlook and allow it to create a new OST file. This will delete the corrupt OST file and replace it with a new, un-corrupted file.
  • Deleting a corrupt OST file in Outlook is an important task. That can help you keep your email program running smoothly and prevent data loss. By following the steps outlined above, you can easily delete a corrupt OST file and get your Outlook program back up and running.

How do I recover data from a corrupted OST file?

According to experts’ opinions, deleting or recreating the corrupt OST file is the easiest option to get rid of the OST corruption issue. But in all cases, it’s not right. Sometimes, you may have vital data saved on your OST file. At that time, you have no other option but to recover the data.

You don’t need to worry about it, as a lot of third-party tools are available online to perform the recovery. In them, the Regain OST recovery tool is the best, we think. Because it comes with all the advanced facilities while having a very simple user interface.

Free Download100% Secure Buy NowPrice: $39

Conclusion

OST corruption can be a major issue for Outlook users. If your OST file becomes corrupted, it can cause Outlook to malfunction or display errors. Which makes it difficult or impossible to access your important data. To prevent this from happening, it is important to delete any corrupt OST file in Outlook. If necessary, you can use a third-party OST file recovery tool to recover any lost data.

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Author: Henry Bray

Henry Bray is a young technologist and content a Content Writer at Regain Software, loves to write about MS Outlook, MS Exchange Server, Office 365, Mozilla Thunderbird and many more email applications.

One thought on “Why And How to Delete Corrupt OST File in Outlook?”

  1. Avatar Scott Newman says:

    It is never a good idea to delete OST files; instead of deleting them use any automated tool and recover them. Business data is the backbone and losing them cause trouble or you might need the deleted OST files data later.

    I truly agree with not deleting corrupted OST files data, and after reading the complete blog using your free OST recovery tool, there is no reason to delete OST files. You make the OST recovery process easy as it never was. Appreciate your effort and effortless tool.

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