How to restrict access to wp-content, wp-includes and all sub-folders

after searching I didn't find an answer still confused of how do I hide the
-> wp-content
--> uploads
--> themes
--> plugins
-> wp-includes in browser. What I want is when viewer browse some like this: http://www.mysite.ext/wp-content they will see an error: You don't have permission to access this page.
Other said that just upload index.html or index.php with .htaccess in the folder you want to hide. But what if I have many subfolder inside wp-content I will do that every folder manually? Or there is a way either in cpanel, or in .htaccess ? Suggestion please, thanks.