Instructions
Visit EA's official online store, Origin (See Resources).
Use the search box to search for "Mass Effect 2."
Click "Add to Cart." Select "Digital Delivery" and choose a language.
Click "Check Out" in the upper right-hand corner of the screen.
Enter your user information and click "Continue."
Follow the on-screen instructions to download "Mass Effect 2." Once the download is complete, you can begin installation.
Double-click the downloaded "Mass Effect 2" file to launch the installer. Follow the installer's instructions to completely install the game.