I am using OS X EL Capitan on Imac 5K, Par. Desktop 11, Windows 10 in order to use Win Remote Desktop. This has been working fine for months after I initially had some trouble adjusting the screen resolution in Windows 10 which was too big, too small icons. One day I accidentially hit the Coherence blue ball and exited it thereafter. When I booted Win10 next time, the screen resolution was again wrong / too big resolution. It was like the Coherence mode extracted some settings from the MAC OS... I have the "Keep Ratio" and "Best for Retina" boxes checked in Parallels Tools. I cant use the Scaling function in Win10 because then all boxes and buttons in the applications I am using through the Remote Desktop get all mis-matched. I have also tried restore defaults and checking Keep Ratio again. If I do nothing my application/software boxes in the Remote Desktop get way too small. Please help.
Hello @KristofferA , Please reinstall Parallels Tools and set the display settings to "scaled". Also, change the Scale to fit screen to Auto and check how it goes!