I have a server with a single application that has multiple SQL server entries listed in Programs & Features (as seen in the image below).

When working with SQL on this server, I only have the "SQL Server Management Studio" for version 2008R2. When that launches though, I can see that the version it shows as being active is 13.0.1601.5, which translates to SQL v2016. From what I can tell, there is only a single instance of SQL running on this server. What would be the best way to remove the older versions of SQL installed on this server, so I only have v2016? Should I re-run the 2016 Setup and select the "missing" pieces; ie "SQL Server Management Studio", native client, etc.? Then remove 2008 & 2008R2 versions?
