We need to apologise. There is a mistake in the Pesgalaxy switch that will cause the game to always start in window mode and can also remove controller settings and sometimes damage the settings, so that the settings.exe doesn't work anymore. These are no permanent problems, but you need to do some stuff to fix that.
Here is a fix for the Switch, you need to replace the old switch in the Pesgalaxy folder with this exe:
it will also remove the 4k enabler from the switch, because that sometimes also caused trouble
If you still have problems with the settings.exe, you can try to delete the file "settings.dat" in the folder Documents/KONAMI/Pro Evolution Soccer 2017 and then the settings.exe should work again and you can set your settings.
I will also reupload the 1.10 patch this evening with the new switch inside so no nobody will have these problems from now on. If you didn't download the new patch you can skip this message and download the new patch later.
Sorry for any inconvenience.