Ensure you have the latest DirectX End-User Runtimes and Visual C++ Redistributables installed. Most FitGirl repacks offer to install these at the end of the setup.
This article provides a comprehensive overview of how to access and set up the "No Steam" version, specifically focusing on the popular FitGirl Repack release. What is Half-Life: Source? halflife source no steam fitgirl repack hot
FitGirl is widely regarded as one of the most reliable names in the "repack" community. A repack is a highly compressed version of a game designed for faster downloading and easier installation. Ensure you have the latest DirectX End-User Runtimes