You may have noticed a IE Enhanced Security warning when accessing websites on Windows 2008/2012/2016 etc, if you are sure about the websites you visit, you can disable this warning,
First, open the start menu and Click on "Server Manager"
Next in Server Manager, Click on "Local Server"
Then click on "On" beside the text IE Enhanced Security Configuration
Here, change all the values/options to "Off" and click on "OK"