How to Move OST File of an Exchange,, or IMAP Account?

How to Move OST File of an Exchange,, or IMAP Account?

Outlook stores an offline storage table (.ost) file that keeps a copy of all Exchange,, or IMAP mailbox items on your local computer. The OST file allows you to access e-mails, compose messages and change settings even if your system is not online.

In this article, we discussed a few methods to move an OST file from an Exchange, IMAP or account to another PC or Outlook profile, an Exchange or Office365 account.

The default location of the OST file,

In Outlook 2007 and 2010, the OST is located in the folder location,

C: users YourUusername AppData Local Microsoft Outlook

In Outlook 2013, 2016 and 2019, you can find the OST at the following location,

C: users YourUusername Documents Outlook files

OST file move methods

According to Microsoft, you cannot import mail items from an offline Outlook data file (.OST). You must export all of your Exchange servers,, or the IMAP account mailboxes and mailbox items to the PST file format via the Outlook Import / Export Wizard.

You can then import the PST file into your new Live Exchange, or IMAP account via the Outlook PST import wizard.

Personal storage table or PST is an Outlook data file used to store backup emails and migrate Exchange, IMAP and accounts to a different user account or PC.

You can also use Stellar converter for OST technician Software. The software allows you to export the OST file directly to another IMAP Outlook profile or a Live Exchange account with 100% accuracy and integrity.

Method 1: add ForceOSTPath Register value

The method allows you to move an OST file to a PC. It allows you to change the default OST location to the location desired by the user without any errors.

When to use:

  • Follow the method when you want to change the default location of the OST file on the same PC to a different volume or folder path

Steps to move the OST file to another folder path or volume on a PC:

  • press the Windows + R button, type regeditand press “Enter”
  • Move towards
    • Outlook 2016 users
      • HKEY_CURRENT_USER Software Microsoft Office 16.0 Outlook
    • Outlook 2013 users
      • HKEY_CURRENT_USER Software Microsoft Office 15.0 Outlook
    • Outlook 2010 users
      • HKEY_CURRENT_USER Software Microsoft Office 14.0 Outlook
    • Outlook 2007 users
      • HKEY_CURRENT_USER Software Microsoft Office 12.0 Outlook
    • Outlook 2003 users
      • HKEY_CURRENT_USER Software Microsoft Office 11.0 Outlook
  • Right-click on the Outlook subkey, choose ‘New“, Then click on the Expandable string value option

Figure 1: Add a new registry value

  • Specify ForceOSTPath and click on “Okay

Figure 2: Add a registry value

  • Right click on the ForceOSTPath and select Edit
  • Specify the path of the OST file for saving in the Value box. Click it Okay button
  • Close the Registry Editor window

Method 2: via the Outlook import / export wizard

Outlook has a Import / Export wizard that allows you to export mailbox items in PST file format. Follow these steps to export OST mailbox items to an importable Outlook PST file.

When to use:

  • Follow the method when you want to change the PC or move OST file data to another Live Exchange, or IMAP account.
  • This method only works if your Exchange server, or your IMAP account on Outlook is accessible.

NOTE: This method does not export metadata such as message rules, blocked lists, and folder properties in PST file format. In addition, the method cannot convert an orphan or inaccessible OST to PST.

Follow these steps to export PST via Outlook,

  • launch Perspective and go to ‘File> Open & Export> Import / Export “

Figure 3: Import / export Outlook data file

  • Select ‘Export to file»And click on«Next

Figure 4: MS Outlook import / export wizard

  • Select ‘Outlook data file (.pst)»And click on« »

Figure 5: Export OST to PST

  • Select the email account, click ‘Include subfolders“, Then click on”Next

Figure 6: Select Outlook Mail Items for Export

  • Click on ‘Browse“To select a backup location, then click”Finish ‘

Figure 7: Browse PST save location

You can enter a password to protect the exported PST file from unauthorized import. This step is optional. You can click “OK” without entering the password.

Steps to import PST into Exchange Server, or IMAP account on Outlook

  • Open Perspective and log in, if you haven’t already

In Outlook 2007 and 2003

  • Click on “File> Import and export …”

Figure 8: 2007 and 2003 import-export prospects

  • To select “Import from another program or file” and click ‘Next’

Figure 9: Import PST into Outlook 2007 and 2003

  • Select ‘Personal folder file (.pst)»And click on ‘Next’

Figure 10: Outlook 2007 and 2003 PST import wizard

  • Click on ‘Browse»And select the PST file

Figure 11: Browse the PST file to import

  • Choose the desired Outlook profile into which you want to import PST. Be sure to click ‘Include subfolders“, Then click on”finish

Figure 12: Select the mail folder

In Outlook 2010

Figure 13: Import option in Outlook 2010

  • Select ‘Import from another program or file»And click on«Next

Figure 14: Importing PST into Outlook 2010

  • Select ‘Outlook data file (.pst)»And click on«Next’

Figure 15: Outlook 2010 Import Wizard

  • Click on ‘Browse»To choose the PST file and click on«Next

Figure 16: Browse PST file in Outlook 2010

  • Select the email profile, click on the ‘Include subfolders’ check box and then click ‘Finish’

Figure 17: Select the email profile

In Outlook 2013, 2016 and 2019

  • Go to ‘File> Open & Export> Import / Export “
  • Select ‘Import from another program or file ” and click on “Next

Figure 18: Outlook 2013, 2016 and 2019 import wizard

  • Click on ‘Browse»To choose the PST file and click on«Next

Figure 19: Browse PST to import

  • Select Outlook profile and Click on ‘Finish’

Figure 20: Select the email profile

Method 3: Move the inaccessible OST file directly to Live Exchange, or Outlook IMAP profile

The OST conversion tool such as Stellar Converter for OST is useful when the OST file is inaccessible, orphaned or if you have to move several OST files to another PC or Exchange, or IMAP user account. he convert the OST file to PST and other formats.

There are two editions of the software: Corporate and Technician. The Technician version also allows you to export the OST mailbox items converted directly to the existing Outlook IMAP profile, the account or the Live Exchange server.


  • Installation of Microsoft Outlook

When to use:

  • Follow this method when the OST file is not accessible or Outlook does not start. Additionally, when your Live Exchange or account is deleted and you want to move mail items from an orphaned OST to Live Exchange, IMAP or

Steps to move an Exchange,, or IMAP OST file using Stellar converter for OST technician,

  1. Install and launch Stellar converter for OST Software
  2. Click on ‘Browse»And choose the OST file

You can also select the ‘Batch conversion » option to convert multiple OST files to corresponding PST files.

Figure 21: Choose an OST file

  1. Click ‘’ After conversion, a message box will appear. Click on ‘OKAY.“You can now click on an email to preview it before exporting

Figure 22: Overview of mail items after scanning

  1. Click on the ‘Save the converted file ” under the “Home” tab

Figure 23: Save the converted file

  1. Choose the PST, Live Exchange, or Outlook Profile option to export the OST file

Figure 24: Select the desired export option

  1. If you selected PST, choose a backup location and click “OKAY’ to start exporting mail items to PST file format. Then follow the steps mentioned above to import PST into a new Outlook account.
  2. If “Export to Live Exchange Server” or Export to Office365 “, enter valid credentials to export the OST file.

Figure 25: Enter Live Exchange credentials

Figure 26: Enter Office365 credentials

  1. Yes ‘Export to an existing Outlook profile‘, Click on ‘Okay»To select the desired profile on the PC and click on«Okay‘and’Okay’To move the contents of the OST file.

Figure 27: Select Outlook profile

Moving an OST file from an Exchange server, or an IMAP account on Outlook directly to another user or PC is not possible without the help of a third-party tool. However, you can export OST mail items to PST to move all mailbox items from the OST file to a new Live Exchange,, or IMAP account, which is discussed in this publication.

The OST file is first converted to the importable Outlook PST file format.

You can use an OST conversion tool described in the publication to export an OST file directly to your Live Exchange, Office 365, or IMAP Outlook profile. It also makes it possible to migrate several OST files to the corresponding PST files in a few clicks, with 100% integrity and precision.

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