Fix MS Outlook not responding/Stopped working Your mailboxes are too large, Due to some reason Outlook data files have become corrupted or damaged, Your user profile has become corrupted and more. Also, the program starts freezing, not responding if its loading external content such as images in an email message, previously installed add-in is interfering with Outlook. There are a number of possible reasons for Outlook to behave this way Such as you don’t have installed latest Windows/Office Updates on your PC, Outlook is in use by another process.
Windows will close the program and notify you if a solution is available.