WordPress Error Update Permalink Setting

We can change our url addres from WordPress site. By default WordPress use address http://your_address.com/?p=123. When I try to update new permalink setting, I can not see new configuration from my url address and I have error message : Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

This error happen because I dont have .htaccess file or .htaccess file is not have write permission. We can get this file at directory indicated by the Blog address (URL). Change write permission from this file or create and upload it to the root of WordPress folder. This is an example of the contents of the file .htaccess with month and name post :

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>