Turning it off and on again wont do Connection Status Shows Disconnected anything except except re-connect their outlook to an already broken cache. "Cannot start Microsoft Outlook. Cannot open the Outlook window. The set of folders cannot be opened. The information store could not be opened." Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. By default, 12 months of your email is available offline, but you can control how much mail is k...