You can install Veeam Backup & Replication in the unattended mode using the command line interface. The unattended installation mode does not require user interaction; you can use it to automate the installation process in large deployments and/or install Veeam Backup & Replication on one or several machines without having to respond to the installation wizard prompts.
Please download and review the following manual in order to perform unattended installation:
Unattended Installation Guide
Please be aware that starting from September 2018 downloading updates will require an active contract for the corresponding product.