I've downloaded a trial version of the EndPoint Protection. When trying to install, it could not process any further due to SQL Server 2012 not found. The thing is we have that installed on the server as well.
Could you please let us know how to correct this?
What you highlighting in here is management Studio. This is a tool where you can manage your databases (instances) but does not means that you have a database installed.
You should download a free database and install it.
You can find here the link to download a SQL Express 2012