After spending several hours trying to get Internet Explorer reinstalled, I finally found these instructions that worked. I don't know why this isn't posted on the Microsoft website: press the Windows key + S and begin typing in manage optional features until you see "manage optional features" and click on that.
Near the top, look for and click on Add a feature.
Scroll down until you see Internet Explorer 11 and click on Install.
Once again, Internet Explorer 11 will reinstall within seconds so you can reboot now and Internet Explorer will be back.
