Icons scales on SU window

I found in one post of the Microsoft Community that is all about the 4K display sitting that affects the size of the icons.
I reduced the resolution to be 1920x1080 and it solved the problem. Thanks to all

This is the post reference:

http://answers.microsoft.com/en-us/windows/forum/windows_10-start/text-size-within-apps-in-windows-10-too-small/8d045904-2d25-4c66-adfc-f52f0bd37bbd?page=3