Small toolbars with 4K display

Hello, I use a dell precision 5520 with a 4K screen and unfortunately my toolbars are tiny in Rhino. I have already done the manipulation proposed here: https://wiki.mcneel.com/rhino/5/video/highres/toolbars_and_text_too_small_in_64-bit_rhino_5_on_high_resolution_screen

but this does not seem to work. How to do ?

sorry for my bad English

Please double check.
If the registry key is set properly, and the manifest file is in the correct folder, then it will work.