I use template ST Balo for example 1. Go to root folder of joomla, find file htaccess.txt, rename this file become .htaccess ( In windows environment, you cannot rename directly, you will have to use an tool to rename, i use Total Commander). This step quite important, if you skip this step, your page will receive error 500 for all page. 2. Login as admin, chose System-> Global Configuration-> SEO Settings:
-Search Engine Friendly URLs: chose Yes
-Use URL rewriting: chose Yes.
then click Save & Close.
3. In front end, we will see result: