When you try to log on to Internet Explorer 11, the program crashes if you click "Cancel" or "Don't Allow" in a dialog box that prompts you for your credentials or a smart card PIN.
To fix this problem, install the most recent cumulative security update for Internet Explorer. To do this, go to Microsoft Update. Additionally, see the technical information about the most recent cumulative security update for Internet Explorer.
Note This update was first included in the MS15-124: Security update for Internet Explorer: December 8, 2015 (MS15-124).
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Learn about the terminology that Microsoft uses to describe software updates.