good luck with that.
The sensible option is to halve the resolution and run the icons at 125% - that's what i had to do with the laptop i set up for a client last night.

Set a new 4k monitor up for a client recently. Could not get adobe photoshop to play ball.

Hi-res screens are all well and good - but alas most software doesn't support them.

In case people are wondering what the problem is. The menus and in program text become absolutely tiny and I've yet to come across a program that lets you adjust their size.