Introduction Hotmail is one of the most used mails and popular free online email service, which is served by Microsoft. Hotmail is easily accessing by its user, they can use Hotmail email by any web browser in the world. What happened to Hotmail? In the year of 2012, Window Hotmail Service name had been changed and renamed to Outlook.com. Now, in this article, we will tell you How to troubleshoot the following issue in Outlook when it’s combined with office 365. The problem facing while combining outlook with office 365 When you start it, Outlook crashed. Outlook stops responding (hangs). Outlook crashes even though you aren't actively using it. Follow these steps we have mentioned to troubleshoot Outlook issues in an office 365: Steps 1: Investigate issues by add-ins. If you're running Windows 10, Windows 8.1, or Windows 8, press the Windows logo key+R. If you're running Windows 7, click Start, type Run in the search box and then click