====== Change Default Location of Outlook OST File ======

:!: By default the OST file is created in ''C:\Users\%username%\AppData\Local\Microsoft\Outlook'' (For MS Outlook 2010 or above).  This is **not** in a Roaming Profile or Redirected Folder.

For roaming profiles/redirected folders users, in order to use Outlook with Exchange on multiple workstations, put the OST file in an Outlook folder in Documents.

===== To change for Outlook 2016 =====

https://support.microsoft.com/en-us/help/2752583/you-cannot-change-the-location-of-the-offline-outlook-data-file-ost-in

  * Copy the existing ''.ost'' file to the new location that you want to use
    * If you want to create a new ''.ost'' file instead, you can skip this step
  * Open the **Control Panel -> Mail** applet.
  * Click **Show Profiles -> Add**
  * Add the Exchange account using email address and password
    * Stay in the **Add Account** window after successfully adding
  * Select **Change account settings -> Next**
  * Click **More Settings -> Outlook Data file Settings**
  * Click **Browse** then browse to the OST file you copied in step one or the location you want the OST in
  * Type the name for the new OST file and click **Open -> Finish**

===== To change for Outlook 2007 to 2013 =====
 
https://www.nucleustechnologies.com/how-to/change-ost-location.html                

  * Open Control Panel. Open the Mail applet.
  * Click the E-mail Accounts tab, and then locate and select your Exchange account.
  * Click the **Change** option, and then clear **Use Cached Exchange Mode**.
  * Go to the **More Settings** option. Select the **Advanced tab**, and then click the **Offline Folder File Settings** option.
  * Click the **Disable Offline Use** option, and then click **Yes**.
  * Once again click the **Offline Folder File Settings** option.
  * Click the **Browse** button to set the OST file location. Click the **OK** button.
  * Click **Yes** to apply actions.
  * In the **Cached Exchange Mode Settings** field, select **Use Cached Exchange Mode**.
  * Click **OK** → **Next** → **Finish**.