Full topic start possible?

in your home template file, see something like this code:

<?php if ( is_category() || is_archive() ) {
	the_excerpt();
} else {
	the_content();
} ?>

Remove

the_excerpt();
} else {

Make sure you are working with a child theme and not editing the original theme files directly.
http://www.presscoders.com/wordpress-theme-customization-guide/