For a visual walkthrough on handling the specific file structures and folder paths for Battlefield Hardline, check out this guide:

Copy the game ID folder (the one containing the .data or large content files) from DVD 1.

: Ensure you transfer the entire folder. If the game still asks for an installation, you may need to use Horizon to properly inject the content files.

: Useful for managing content folders if you run into loading issues. Step-by-Step Installation Guide

: Use your preferred image browser to extract the contents of both DVD 1 and DVD 2 to your PC. You should end up with two separate folders.