If you had many changes to your Internet Explorer (IE) 11 and is not behaving well or crashing for certain functions. You can reset the browser back to it's original default and delete all the personal data and settings.
To do this follow the instructions bellow:
1) Close Internet Explorer
2) Open the
Control Panel (Start -> Control Panel)
3) Click on
Internet Options
4) Click the
Advanced Tab
5) Click the
Reset button showing in the picture bellow

6)Check
Delete personal settings check box and click
Reset as showing in the picture bellow

7) When Internet Explorer finishes applying default settings, click
Close, and then click or click
OK. You will need to restart your Computer for these changes to take effec
Related Internet Explorer tips:
Internet Explorer (IE 11) Crashes on start
How to disable browser internet add-ons on your computer?
How to delete cookies, temporary internet files, history, download history, form data, & Active X filters on Microsoft I