Problem: IE is broken, not working, crashing, etc. You want to reset IE but it will not allow you to do it the traditional way.
Close all applications / windows
Click Start > Run and type: inetcpl.cpl > hit enter
This should open the IE Options windows with all its tabs and settings.
If you use Vista/Win7 just type: inetcpl.cpl into the search box right above the start button