move outlook 365 data file to a different drive

Return to the Change E-mail Account window, check Use Cached Exchange Mode and then click on Next.Click on Offline Folder File Settings again and click on Browse to change the location of the Offline Folder, then click on OK. Click OK to return to the Microsoft Exchange window.Read the Knowledge Base article on What Is Cached Exchange Mode In Outlook? for more information. To re-enable it disable Cached mode and restart the Outlook. Note: Disable Offline Use might be inactive. In the Offline Folder File Settings window, click on Disable Offline Use.

In the Microsoft Exchange window, click on Offline Folder File Settings.

In the Change E-mail Account window, uncheck Use Cached Exchange Mode, and then click More Settings.

In the Account Settings window, select Microsoft Exchange and then click on Change.

In the Mail Setup – Outlook window, click on Email Accounts.

In Control Panel, double-click on Mail.

On the desktop, click Start > Control Panel.

To change the OST file location on the Outlook 2007 - 2010:

Offline Folder files (.ost) have a default location on a computer. Sometimes you may need to change the default location in order to manage mail in Outlook or manage disk space on a computer.

Move outlook 365 data file to a different drive