How to Rename OST File in MS Outlook? Easy and Quick Steps

Mark Regan
Published: May 9th, 2024 • 5 Min Read

Do you want to rename OST file in outlook but don’t know how to do it? Well you don’t need to worry. There are several ways that you can use it. Just read this article and understand the easy steps to instantly change OST file name with just a few clicks.

OST files (Offline storage file) are local copies or offline folders of user’s mailbox data in the exchange server. OST files are important for all the professionals nowadays. Sometimes users start encountering issues with their OST files which they want to fix by changing its name. However there can be several different reasons to rename OST file in Outlook 2007, 2010, 2013, 2016, 2019 & 2021.

If you also want to change OST file name and make it more secure, then try the methods described in the article. We have also provided valuable information that you should definitely know before changing the name of your OST file.

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Reasons to Rename OST File

Following issues can be fixed by changing the name of OST file:

  • The OST file is freezed and you are unable to open, view and edit it.
  • OST corruption issues, restricted to send and receive emails.
  • The OST file is not working and showing errors.
  • The Outlook OST file is taking so much time to load.
  • Outlook is disconnected and unable to synchronize the local mailbox.

How to Change OST File Name in Outlook?

Following are the mOST popular methods to rename OST file in different versions of Outlook such as 2019, 2016, 2013, 2010, and 2007. Moreover if you still fail to :

Rename OST File in MS Outlook

  1. Close the Outlook app and go to the default path of OST file:
    • C:\Users \YourProfileName\AppData\Local\Microsoft\Outlook
  2. After navigating the default .OST file location.
  3. Right click and type the new desired name for your OST file and press Enter.

Change OST File Name in Outlook 2021, 2019, 2016, 2013, & 2010

  1. Open MS Outlook and click on the File tab to rename OST file.
  2. Click on Info button then select Account Settings> Account Settings.
  3. Open the “Data Files” tab and choose the file which is “set as default”.
  4. Find the option Open folder/ Open File Location then click on it.
  5. Change the OST file as per your choice and press Enter key.

How to Rename OST File in Outlook 2007?

  1. Simply Click File> Info> Account Setting> Account Setting.
  2. Choose Default tab> Open Folder.
  3. Right click on the OST file and change its name.

Changed OST File Name But Still Can’t Access Its Data? Here’s the Solution

Renaming an OST file is easy but it may not resolve the problems you’re facing with your OST file. If you are having several difficulties with your OST file and want to fix them before renaming it, you should try BitRecover OST File Recovery Software. If you use this software, you can easily get all the data available in your OST file such as emails, notes, contacts, calendars, tasks, etc in a healthy way without facing an error.

The tool helps you to rename OST file in bulk while getting your OST file data and save them in 30 different formats to make it easier to access across multiple platforms. No matter what issues you are having related to your OST file, even if you don’t know what causes your OST file corruption, you can easily resolve them all just by using this tool before changing its name.

Steps Rename OST File by Fixing All Issues

Follow these steps to rename or rebuild OST file while fixing all the issues you are facing with it:
rename OST file

  1. Start the tool and add OST files or folders.
  2. Specific required folders and click Next.
  3. Select a PST format in the saving option.
  4. Select path by clicking on Browse button.
  5. Click on the Repair button to start the process.
  6. Change OST file name by navigating to its file location which you just selected.

Note: After recovering and converting OST files to PST, you can import them with any name you want.


We hope now you understand how you can rename OST file and in what ways you can make this process more beneficial for you. We explained several different methods to Change OST file names in Outlook 2021, 2019, 2016, 2013, 2010, 2007. And we also saw that doing it is not a big deal. But what if you are still unable to read OST file emails and items even after changing its name? For this we suggested you a software that you can use before renaming your OST file.