How to Locate OST file in All MS Outlook Versions?

OST file is located in the user’s system. But specifically where and how to access them becomes a question of grave concern. Sometimes users are so skeptical about it that they don’t wish to access OST files unless it is very much needed in the eleventh hour. When such situation arrives, at that point the user starts looking for the possible location where the concerned OST file could be found. In the meantime, to look for the concerned OST file, the naive users tend to delete the real files instead of obsolete.

Why does one need to locate OST file?

The possible situations or scenarios where the Outlook user feels the need to find the exact OST file location are:

  • When OST file backup is required (in non-availability of Import/Export wizard)
  • When there is need to change the OST file location due to storage problems
  • When OST file is outdated/corrupted and required to re-create a new OST file
  • When OST file to PST file conversion is required
  • When Exchange Server is unavailable or under maintenance
  • When OST file is needed to be analysis

Is it really very easy to do? This question strikes the mind of the user whenever user thinks to locate OST file. So, the abrupt response to any user for such question is – Yes, it is quite easy to locate OST file and make the necessary changes. However, the condition applied is – ‘The location of OST file may differ with MS Outlook version being used’.

By the way, the default path locations for the Exchange OST files on the system are as follows:

For most of the Windows versions –


In detail, the default OST file location for different Outlook versions are as under.

Version Path
Outlook 2019, 2016 & 2013 C:\Users\admin\AppData\Local\Microsoft\Outlook
Outlook 2010 C:\Documents\Outlook Files
Outlook 2007 & older versions C:\Users\User Name\AppData\Local\Microsoft\Outlook
Windows XP C:\Documents and Settings\Local Settings\Application Data\Microsoft\Outlook

Microsoft Outlook users can locate OST file in all MS Outlook versions manually using its Account Settings feature. Let us know how.

Locating OST files in different Outlook Versions

The location of OST files differs with Outlook version being used by the user. Here are the steps that clearly mention the OST file location in different versions of Outlook.

For Outlook 2003 and prior versions users
  1. Access Outlook 2003 platform followed by Tools -> Email Accounts
  2. Make selection of Microsoft Exchange Account followed by clicking the View button.
  3. Click Microsoft Exchange Button followed by Change button.
  4. A dialog box will appear. Now, click on More Settings and again a dialog box will appear.
  5. Make selection of Advanced tab.
  6. Hit the Offline Folder File Settings and here the location of OST file will appear.

Due to some technical issues in old Outlook versions and some advancement in the newer version, most of the professionals have started using MS Outlook 2007. Locating OST file in Outlook 2007 follows different path:

  1. Open Outlook 2007 platform.
  2. Click Tools -> Account Settings -> select Emails.
  3. Select MS Exchange Server followed by clicking ‘Change’ in ‘Change E-mail Account’.
  4. Hit the More Settings and a dialog box will appear.
  5. Now click Advanced tab to click Offline Folder File Settings.
  6. The ‘Offline Folder File Settings’ displays the location of OST file(s).
  7. Hit the File Field and copy the path.
  8. Paste the file path and get the OST file access.

What if you are an advanced user of Outlook and had been using Outlook 2010 for quite some time? Then definitely, steps to be followed must be different:

  1. Open Outlook 2010 platform followed by selecting File tab.
  2. Click Account Settings ->Account Settings. The Account Settings dialog box will appear.
  3. Select MS Exchange Server.
  4. Hit the Change button. The ‘Change Account’ message will be reflected.
  5. From more settings click the ‘Microsoft Exchange’ dialogue box.
  6. From Advanced tab, click the Offline file settings option. ‘Offline Data File Settings’ dialog box will appear. In the File field, the OST file can be seen.

If you are using Outlook 2013 or Outlook 2016 or Outlook 2019, then the procedure for finding the OST files is same as in Outlook 2007. But be sure to know the version of Outlook before you step into the process of search out of the concerned OST files.

If you are too lazy – You need a different solution

Get a single stop solution to locate OST file without going deep into Outlook settings. This sort of assistance can be taken from external tools as they are comprised of sophisticated set of algorithms. To evaluate the performance of such tools, user can try SysTools OST to PST Converter trial version that mimics like licensed version with few saving abilities. This automatic solution does not need any email client to perform its functions. Automatic search for OST files on system drive is attainable through this tool apart from the conversion. So, the tool is advantageous in many ways via a single platform. Checkout this tool at the software website only for your gains!

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Final Words

We got to know the manual ways for finding OST file locations for different Microsoft Outlook versions using Outlook Account Settings feature and direct path locations for OST file based on different Outlook versions. For easier and automatic search and conversion of OST file, an all-rounder third-party Best OST to PST tool is also introduced for all.

About Elias Macclure

Elias has a sleek writing style, and the reader may find that the extensive nuances of the material are covered in the article. He changes the writing style according to the platform and writes fine for Office 365 and SharePoint. He is an active reader and reads books by renowned writers including Charles Dickens, Sidney Sheldon and Agatha Christie.


  1. This blog helped me locate OST file as I was using Outlook 2019. These are amazing methods provided by this blog to easily find the location of OST files on your system. The suggested versions with their paths are very helpful to the user in locating the OST file. I appreciate the entire team for making and sharing this wonderful blog.

  2. Getting problem of an oversized OST file issue because of my system ‘D’ drive was full. To get rid of this issue, I had to change OST file location to new drive. Finally, I located OST file using the given methods for Outlook 2010. Thanks a lot.

  3. As I was using Outlook 2010, this blog was extremely helpful in locating the OST file. It is an excellent blog that can assist users in locating their OST file. Thank you for sharing this useful blog.

  4. Every user’s computer has a different version of Microsoft Outlook installed. Users must locate the OST location for numerous reasons. This method assisted me in locating the OST location while using MS Outlook version 2016. I appreciate you sharing this useful article.

  5. I was using MS Outlook 2016 and wanted to check the location of my OST file. In this post, I found different ways to use different versions. Here I applied the above mentioned method to my Outlook version, where I achieved a positive result.

  6. I took much time on internet in searching of method to locate OST file in MS Outlook for many purpose. And with this post my search ended and easier my work for locating OST files location.

  7. Many times I needed storage for new emails in Outlook mailboxes and for a space I shift my old OST files to new location. To search these OST files I used this method and successfully done my job. Thanks for creating this useful blog.

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