I have installed Windows 10 (18-03) and all required drivers on a NUC8i7HVK connected to a LG 1080P TV.
Everything seems to work well. Now I want to use the NUC with a Sony 4K TV.
But when I connect it to the Sony TV the max resolution is still 1080P and I can't find any setup to increase it.
How to solve this, reinstall the graphic driver with the Sony TV connected or do something else?
How old is your cable?
HDMI2.0 cables are sometimes hit&miss (no matter of price). Although cheap I have good experience with PremiumCord cables.
Make sure they mention 4k@60Hz (doesn't have to be really HDMI 2.0 certified)