In Windows 10 you have to restart after you change the font.... You now need 3rd party tools to do what you used to do easily in earlier versions of Windows.
In Windows 7 you can make several changes under Personalize> Windows Color without restarting the computer.
I do not know why the change.
Also an annoyance with Windows 7 and earlier is it does not have a network driver when you first install so you cannot get on the internet.
I have my cd with the motherboard network driver on it handy but if I lost it then what do you do? I do have another pc to get online and find the driver to put on a usb drive then install on the other pc but not everyone does.