Choose your language, Click next twice and proceed to the installation notes. As with any software you should read these notes for any issues that you may disagree with. Should you accept, Click next.

The installer options screen displays the default options for PostgreSQL. The standard options are sufficient for Phineus and we recommend you accept the defaults by clicking 'Next'

Postgres requires the creation of a local user account in order to run. This requires that you, or the person installing PostgreSQL has administrator access to the PC on which the install is being performed. If you do not have administrator access, or are not sure if you do, check with your local Systems Administrator, as they should be able to help.

The default values selected by PostgreSQL for Service Name, Account domain (which will be your computer's name) and Account name are perfect for Phineus, however, you should provide a password for the account.

This password should be something that you remember and should conform to the requirements of passwords on your local area network (so if your network requires a minimum password length of 8 characters, then the postgres account will also require this). Should you enter a password that does not meet your network requirements the install will rollback and you will need to start again.

Once you have provided a memorable password, press next to continue.

NOTE: If the installer prompts you to create the user please click 'Yes'

See screenshot , all the standard settings are appropriate, other than for the Superuser name, which is the login name you will use to access the data stored by Phineus.
This should be changed from its default value to root as shown in the screenshot. You can then supply a password (of any length) and finally select Next to continue with the installation.