The first step is to create an installation package
Once you have the installation package created, the next step is to create a deployment task. There are 2 ways to install the clients. If you are on a domain and have the domain administrator credentials, you can remote deploy to the clients as long as the the windows firewall is off (or the correct ports are open, see this article for prt information https://support.business.avast.com/hc/en-us/articles/212318146) and file and printer sharing is enabled on the clients you are trying to deply to.
You can also generate a .EXE file to use to install manually on the clients.