Ya pays yer money ya makes yer browser choice
I only saw this screen the other day when I was using the other half's laptop which was new last Xmas.
Found a 'Choose a Browser' link on the desktop. Ironically this fires up an IE window.
The list of browsers had the usual (IE,FF,Chrome,Opera...) but also had a number that I had never heard of and installed just to look at!
It also mentions that while IE is not pinned to the dock... I mean, taskbar, it is available on the start menu.