In Outlook 20, please click the File > Open > Outlook Data File.Step 3: Now you get back to the main interface of Outlook. Click the Close button at the bottom to exit the dialog box.Click to highlight the email account that you will remove.Step 2: In the Account Settings dialog box, In Outlook 20, please click the File > Info > Account Settings > Account Settings.In Outlook 2007, please click the Tools > Account Settings.Step 1: Open the Account Settings dialog box, This method will guide you to remove an email account from Microsoft Outlook, but keep all items of this email account in Microsoft Outlook. Remove an account but keep its email with saving original data file