Thank you for contacting us here! Microsoft Edge is the default browser in Windows 10. However, if you prefer to use IE, then you can refer to the following related Microsoft community discussion will explain to you how to open Internet Explorer in Windows 10 and how you can pin it to your Taskbar for easy access: In Windows 10 , how do you pin / add Internet Explorer 11 to the taskbar
If the above discussion didn't match your situation and resolve your issue, we suggest contacting Microsoft since this problem seems to be related to your Operating System - Windows 10. Here is the link where you can get support from Microsoft: Help for Microsoft
Hope this helps! Once the Internet Explorer issue with Windows 10 is resolved, feel free to come back here anytime if there is any problem with your Trend Micro products and we'll be happy to assist. Thanks!