Import ESRI shape file into Postgis
Download the install pack for your Windows platform from the PostgreSQL download site (http://www.postgresql.org/download/ ).
Launch exe to install PostgreSQL.
Once PostgreSQL is installed, launch Application Stack Builder from (Start->Programs->PostgreSQL 9.5->Applciation Stackbuilder
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Choose the version of PostgreSQL you want to install PostGIS on and the version of PostGIS to install.
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Navigate to spatial extensions and choose PostGIS 2.2., download and install. The PostGIS windows installer, does not create a template database. Use the CREATE EXTENSION postgis command for enabling PostGIS in a database.
The create spatial database checkbox is optional, and we generally uncheck it. It creates a spatial database for you to experiment with and has all the extensions packaged with PostGIS Bundle pre-installed