Any reshade-shaders folder or ReShade.ini if you installed the Reshade option.
If you downloaded QuantV Portable as a standalone zip file and extracted it to a folder (like your Desktop or a generic "Games" folder), follow these steps: how to uninstall quantv portable
If the uninstaller is missing or fails, manually delete these specific files and folders from your main Grand Theft Auto V directory: QuantV.asi QuantV.ini enbhelper.dll d3dcompiler_46e.dll (these are often part of the ENB/Reshade component) quantv.addon Method 3: Full Reset for Online Play Any reshade-shaders folder or ReShade