Kaspersky free for non-commercial use, comodo free products for both commercial and non-commercial use are some good options
You didn't understand the questions. It is about open source antivirus software.
I would basically say that ClamWim is only the program that uses the signatures and the engine of ClamAV. There are no dynamic modules there.
The situation is different with Immunet: There the ClamAV engine is built in and a dynamic protection, but Immunet is not open source, only one part, ClamAV.
Free GNU software is therefore not an option for Windows. However, you could harden your system with Hard_Configurator. The program is not open source, however, the best solution that could answer your question.
I don't use Windows, but if I used it, I would disable Windows Defender and other protection mechanisms, install Hard_Configurator and use SmartScreen. I'm as excited about free open source software as you are.