

It seems the other answers already covered what you needed to know, so I won’t be redundant here. Pro tip: if you rarely use your Windows installation, you might consider moving it into a virtual machine that you can conveniently boot from within your running Linux system. This way you wouldn’t need the dual boot anymore, which might be desirable for various reasons.
Because it’s fine the way it is. They can ask newbie questions over there, while we try to have more interesting discussions over here.