I ran into this issue this week. vRealize Orchestrator with Windows 10 on 4K displays makes the UI so small not even my seven year old could read it. For those lucky enough to have 4K displays it’s a real challenge. It’s a problem with java and dpi scaling not Orchestrator but it’s a magical challenge. As much as I want to return to the day of using magnify glasses to read computer screens… here is a simple fix.
Download the client.jnlp and run it from an administrative command line with the following command:
javaws -J -Dsun.java2d.dpiaware=false client.jnlp
This should fix your vision issues and it’s cheaper that a new pair of glasses.