It is advisable to run the PostgreSQL server as a non-administrative service account called "postgres" to minimize the possible damage that a cracker could do should they find and utilize a bug in PostgreSQL to crack the system.
In this section, you will be explained how you can create a "postgres" user account.
Hint : Hint: It isn't necessary to create a "postgres" user account if you install PostgreSQL by the one click installer provided by EnterpriseDB as the installer will create it for you.
The installer is available via the official download site of PostgreSQL
(http://www.postgresql.org/download/).