Internet Explorer 11 – Crashing and Shutting Down

Scan for viruses, malware and spyware. Malwarebytes.org is a good tool.

http://m.winsupersite.com/microsoft/q-how-do-i-keep-internet-explorer-11-crashing-so-many-times-every-day

http://m.wikihow.com/Fix-Internet-Explorer-when-It-Keeps-Closing-Pages

https://www.techwalla.com/articles/how-to-fix-internet-explorer-when-it-keeps-closing-pages

How To Fix Flash Crashes in Internet Explorer 11

Click on tools-Internet Options-Advanced-security- Uncheck the box enable third party browser ext files in IE.

Try updating Adobe Flash and Java.