Go to Settings > Assetto Corsa > Apps and check all "Sol" related boxes (e.g., Sol Planer, Sol Config).

Go to Settings > Custom Shaders Patch > Weather FX . Set the Weather script to "Sol".

If you experience bugs, consider upgrading to the latest version of Sol (currently 2.2.9) available on platforms like Overtake.gg (formerly RaceDepartment).

Drag the SOL_0.7r5_Win64_.zip file directly into the CM window.

If prompted to overwrite existing files, select Yes . Method 2: Content Manager Drag-and-Drop Open Content Manager .

Click the in the top right corner and hit Install . In-Game Configuration

Drag these four folders into your main Assetto Corsa installation directory (usually C:\Program Files (x86)\Steam\steamapps\common\assettocorsa ).

Use a tool like 7-Zip to open SOL_0.7r5_Win64_.zip .