This is not for EasyPanme 1 Person.

This is for EasyPanme 3 Persons, 5 Persons.

Because [ Main PC ] has a data and the other pc share data with network. 

[ easypanme 2015 ] -> [ data ]

Click a properties.

Uncheck [ Read-only (Only applies to files in folder ) ]

Move to [Sharing] -> Click a [ Share... ]

Choose a [ Everyone ]  

Click a [ Add] button

Change a [ Permission Level ] -> Read to Read/Write

Check and Click a [ Share ] button