Upgraded today to the Windows 10 update.
Since Windows 7, Windows defaults to the awfull (for my taste at least) Segoe UI font. In Windows 7 and 8 these could still be changed but in Windows 10, Mircrosoft removed that option so the font settings for icons, messages etc are not changeable anymore.

But with a few tweaks in the registry, these could be changed again to my likings.
But with the upgrade i got today, it seems M$ moved a step up. I can still change the font settings for icons, messages etc... but the context menu's still have the awfull Segoe UI font.
Can't find any registery key to set these.