How to change icon size for each folder in windows 10

 >Go to C drive

> Click on view and change it to 'medium icons' or 'large icons'

>Click on options and click on ''change folder and search engines"

> Click on 'view' tab> Click on 'apply to folders'

>Do it twice

reference:- https://superuser.com/questions/1165751/how-to-show-all-windows-folders-in-large-icons