If you have got Lenovo device and want to operate your smartphone via your computer instantly by just one click, then you should download the Lenovo PC Suite from here.
Having an official USB driver required for your Vivo V20. Thus, you should download all the official latest available drivers from this post. As we have included all the Vivo V20 USB driver along with the PC Suite. The next step is up to you to download it from here and then install it on your computer by following this guide.