Download Windows 10 Pro Redstone 5

Steps to change the display language

Control Panel

Language

Add  A  Language

choose Arabic or French or whatever you want 

Download A small File online (inside update section )

save and log off - then your new lang selected 

link x64 : https://turbobit.net/1hde3f79l7q9.html

link x86 : https://adsyoo.com/LWN09