Follow these simple steps:

  1. Go to Prestashop admin panel and click on the “Preferences” tab,
  2. Then scroll down to “Friendly URL” and click on “Enable”, then “Save”,
  3. Create a .htaccess blank file in prestashop root DIR,
  4. Provide required permissions (CHMOD 666 on Unix system, in Windows OS it is generally not required),
  5. Click on the “Generate .htaccess file” button,
  6. Go to front-end and refresh the page.

Download full .htaccess file. (Unzip and move to root Prestashop folder).