Joe has a Hotmail account that got converted to Outlook, but Internet Explorer keeps showing an error message when he tries to use Outlook.com.
First, Joe should try resetting the browser. To do this, he should close all open windows. Then open Internet Explorer and go to Tools --> Internet Options --> Advanced Tab, and choose "reset". That should restart IE in factory default settings.
Next he should remove any add-ons or extensions that may have gotten installed. Go to Tools --> Manage Add-ons, and delete all of them. He could also try using another browser like Google Chrome.