I notice that a lot of people people are wondering how they are going to be able to install a browser if IE is removed from Windows by default. This is a good question, but the answer is fairly straightforward.
If I am not mistaken, most Windows installations are not direct Windows purchases, but rather OEM versions preinstalled on new computers. In other words, the vast majority of Windows installations will come with the OEM's browser of choice, rather than Microsoft forcing all OEMs to stick with IE as they have been doing.
Then there's perhaps a smaller group which will install Windows manually. There are several possible solutions for this group, such as offering a way to download any browser through some kind of portal the first time you connect to the internet (most Linux distributions have package managers, so why not Windows?), supplying separate disks containing the browser(s), and so on.
For the vast majority of people, I don't see that this will become a problem since they will simply use the browser the OEM decided to bundle. And with antitrust regulators breathing down Microsoft's neck they won't be able to force OEMs to bundle IE anymore.