A standard 7GB game compressed using standard methods (ZIP, RAR, 7z) might reduce to 4GB or 5GB—saving some space, but not much. Video games are already compressed from the factory; textures, audio, and 3D models do not compress well because they are already optimized.

Not without extreme data loss or stripping the game to an unrecognizable state.

“No space,” the laptop kept telling him. “Need at least 7 GB.”