Is when you start it? If so it's possible something you installed (one of those installers that try to get you to install other things as well) changed your IE setting so on startup it opens all those tabs
if it is to fix:
go to setting(click the gear)
select Internet Options
under home page, delete all links
put one(or as many as you like) link in their place
there you go the removed multiple tabs opening on staring IE