How To Delete Ost File In Outlook: A Step-by-Step Guide

Deleting an OST file in Outlook may sound complex, but it’s actually a pretty straightforward process. In a nutshell, you close Outlook, locate the OST file on your computer, and delete it. When you open Outlook again, a new OST file is created automatically. So, let’s get started!

Step by Step Tutorial: How to Delete OST File in Outlook

Before we dive into the steps, know that deleting your OST file will remove the locally stored data of your Outlook account. However, don’t worry! All your emails and other data are also stored on the server, so you won’t lose anything important.

Step 1: Close Microsoft Outlook

Make sure that your Outlook application is completely closed.

Closing Outlook ensures that the OST file is not in use, which is necessary for deletion. You can check if Outlook is closed properly by looking at your taskbar or using the Task Manager to see if it’s running in the background.

Step 2: Locate the OST File

Navigate to the folder where the OST file is stored on your computer.

The location of the OST file can vary, but it’s typically found within the user’s AppData folder. The path usually looks something like C:Users[username]AppDataLocalMicrosoftOutlook.

Step 3: Delete the OST File

Select the OST file and delete it.

You can delete the file by right-clicking on it and choosing ‘Delete’ or by pressing the ‘Delete’ key on your keyboard. If you see a prompt asking for confirmation, click ‘Yes’.

After completing these steps, the next time you open Outlook, it will automatically create a new OST file and synchronize all the data from the server. This can take some time, depending on the size of your mailbox.

Tips: Deleting OST File in Outlook

  • Before deleting the OST file, ensure that you have a stable internet connection so that Outlook can synchronize with the server without any issues.
  • If you are not able to find the OST file, you can search for .ost in the Windows search box.
  • Deleting the OST file may solve some common Outlook issues, such as performance problems or synchronization errors.
  • Always make sure to exit Outlook properly before attempting to delete the OST file.
  • If you’re unsure about deleting the file, you can always rename it. Outlook will create a new OST file, and you can still access the old one if needed.

Frequently Asked Questions

What is an OST file?

An OST file is an offline folder file in Microsoft Outlook that allows you to work offline and synchronize changes with the exchange server the next time you go online.

Will I lose any emails or data if I delete the OST file?

No, you won’t lose any emails or data stored on the server. The OST file is a local copy of your mailbox, and everything is still retained on the server.

Can I delete the OST file when Outlook is running?

No, you must close Outlook before deleting the OST file to avoid any potential errors or corruption of data.

How often should I delete the OST file?

There’s no need to delete the OST file regularly. It should only be done if you’re experiencing issues with Outlook that cannot be resolved through other methods.

Can I recover anything from a deleted OST file?

If you’ve deleted an OST file and need to recover its contents, you might be able to restore it from the Recycle Bin if it hasn’t been emptied yet. Otherwise, the data is still on the server.

Summary

  1. Close Microsoft Outlook.
  2. Locate the OST file.
  3. Delete the OST file.

Conclusion

Deleting the OST file in Outlook is like giving your email client a fresh start. It’s like clearing the cobwebs that might slow down or cause glitches in your Outlook experience. By following the above steps, you’re not only ensuring that your Outlook runs smoother, but you’re also troubleshooting some of the most common Outlook issues with one fell swoop. Remember to always back up your data and ensure that you’re comfortable with the process, but also know that it’s a pretty low-risk operation given that all your data is safely stored on the server. So, next time Outlook starts acting up, you’ll know exactly how to delete the OST file and get back to business as usual.

About the author

Matt Williams has been in the IT field for almost two decades, and has held a number of roles. Now he spends most of his time building websites and writing content.