How to Delete and Recreate OST File in Outlook 2016/ 2013/ 2010/ 2007

admin | Modified: November 8th, 2018 | MS Outlook


In many situations OST file shows undesirable behavior when a user tries to access data from it. There are many reasons behind this risky working of Outlook OST file like accidental deletion of OST from Exchange Server, Virus intrusion, Outlook synchronization issues. In such situation, the user needs to delete existing OST file and then recreate Outlook OST file to fix the abnormal behavior of OST file. This error can occur in any version of Outlook like Outlook 2016, Outlook 2013, Outlook 2010, Outlook 2007, Outlook 2000 etc.


Need to Delete OST File from Outlook 2016 / 2013 / 2010 / 2007 / 2003 / 2000

Outlook maintains its data file in two modes one is .pst and the second one is OST. There are various reasons that can damage OST file easily and restrict it from performing the normal working of Outlook. But the most common causes of undesirable behavior of OST are virus intrusion and synchronization issues. To fix these issues a user can either delete existing OST file or resynchronize Outlook with Exchange Server or try OST Recovery Software. Each method has its own pros and cons.

It is recommended that before deleting OST file from Outlook, take updated backup. However, as you delete the OST file, all the changes that are made offline will get lost. And, after synchronizing Outlook with Exchange server, a new OST file will be created. But there might be the chance of data loss. Thus, it is recommended to download the utility suggested above and easily fix Outlook OST file issues.

Steps to Delete OST File from Outlook 2016 / 2013 / 2010 / 2007

Deleting OST file is quite easy if you know the location. Simply locate the Outlook folder and select the OST file and delete it. But, if you do not know the location of OST file then follow the steps mentioned below:

Note: Remember one thing that location of OST file different in different versions of Outlook.

  • Quit Outlook (If it is Running).

  • Go to Run window or press Windows key + r.

  • Type “%LOCALAPPDATA%\Microsoft\Outlook\” in the Run window and click OK.

    Note: – The command will automatically locate the .ost file from any Outlook 2016/2013/2010/2007/2003/2000.

  • Select the .ost file and either right-click on it and then hit on Delete option or press Delete Key.

If you are facing any issue in opening OST file then find the best solution to repair OST file. The complete and step by steps guide to fix this issue.

Steps to Recreate .OST File in Outlook 2016 / 2013 / 2010 / 2007

After successfully deleting the OST file, you need to recreate OST file for the proper functioning of Outlook. In this section, you will find the steps to create OST file in Outlook 20013, Outlook 2010, and Outlook 2007.

  • Open Tools menu from Outlook 2007 But in Outlook 2010, 2013, 2016 hit on the File tab and then click on Info.

  • Now click on Account Setting and double-click on Microsoft Exchange.

  • From Setting pop-up hit on More Setting button.

  • Click on the Advance tab and hit on Offline Folder File Setting (In Outlook 2013 hit on Offline Data File Setting).

  • Now provide the path to save .ost file and click OK. The default name of the OST file is Outlook.ost.

  • If you see this Error message then simply click on OK.

    “<path> <filename>.ost could not be found. Would you like to create it?”

  • At the end click OK and then Finish.

Steps to Recreate OST File in Outlook 2003 / 2000

To create OST file in Outlook 2003 and Outlook 2000, simply follow the steps mentioned below and synchronize Outlook with Microsoft Exchange Server.

  • Open Outlook and go to Tools menu and click on E-mail Account.

  • Now hit on View or Change Existing Mail Account and then click Next.

  • Locate the Outlook Process Email for Those Account in the Following Order box and hit on Microsoft Exchange Server and after that Change.

  • Now click on More Setting option.

  • Select the Advance tab from the menu and click on Offline Folder File Settings.

  • Now in File box provide the path where you want to save .ost file and then click OK.

  • By default name of OST file is Outlook.ost.

  • Now an error message will be prompt as shown below. Simply click on OK.

    “<path> <filename>.ost could not be found. Would you like to create it?”

  • At the end click on Next and then Finish.

Note: – It is necessary that Outlook must be connected to Microsoft Exchange Server for the synchronization of offline data file so-called OST file.

Final Words!!

This blog will let users know how to delete and recreate OST file in Outlook in Outlook 2016 / 2013 / 2010 / 2007 / 2003 / 2000. As the location of OST file is different in all Outlook versions so, the procedure to delete and recreate OST file is different is also different. Depending upon the version of Outlook, a user can follow the steps for the same.