This might be because Windows Update is not configured on your computer to automatically download and install recommended updates. The Office installation on your computer might not be up to date. These steps are provided in a specific order based on commonality and complexity.
This problem occurs for one or more of the following reasons: When you open a file or send an email message in Microsoft Outlook 2010 or later versions, Outlook freezes, or you receive the following error message:
Outlook not responding error or Outlook freezes when you open a file or send mail
