I have a wordpress website that I deployed on IIS the website had a problem earlier that arabic names for posts and categories was not working and after a lot of search I found an answer on stackoverflow that advice me to add those two lines in my wp-config.php file
if ( isset($_SERVER['UNENCODED_URL']) ) {
$_SERVER['REQUEST_URI'] = $_SERVER['UNENCODED_URL'];}
and thankfully it works for posts and categories , but the same problem is still happen in images in arabic and all these images are not shown in my website