How to fix Wordpress 404 Not found error on Pages

While searching on more some blogs more peoples faced issue like They are facing 404 error page on the post and the index was showing fine.the error was causing because there is no .htaccess file uploaded on the wordpress files which is under /public_html where the files wp-admin,wp-content,wp-include files are uploaded so create an .htaccess file and paste the following code :

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

Then save the file ! the issue should be fixed