1) NoW go to the root of your Magento website folder and use this code for your .htaccess:
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
2) Log-in to your Magento administration area then go to 'System > Configuration > Web' . Navigate to the 'Unsecure' and 'Secure' tabs. Make sure the 'Unsecured' and 'Secure' - 'Base Url' options have your domain name within it, and do not leave the forward slash off at the end of the URL. Example: http://www.yourdomain.co.uk/