I installed SQL Server 2008 R2 Express edition before, but forget about full text search. Now I need that feature, so I downloaded installation from http://www.microsoft.com/en-us/download/details.aspx?displaylang=en&id=25174.
When I run installation and install it as new server instance, Full-Text Search feature is enable, but when I try add features to existing server instance this feature isn’t available to check.
Setup folder contains file sql_fulltext.msi, so this feature is in the installation.
SELECT SERVERPROPERTY('IsFullTextInstalled')
returns 0
I reinstalled MS SQL Server, and it works.