How to install Windows Server Backup on Windows Server 2012
Log onto your server via Remote Desktop and open Server Manager
From the top right-hand menu, select Manage > Add Roles and Features
A wizard window will open. The first section is Before you begin. You should read this page before you advance. Click next once you have made the checks.
The next section is Installation type. Select Role-based or feature-based installation > Next
The next stage is Server SelectionSelect your server from the server pool > Next
You can skip the Server Roles section (leave options as default). Click Next.
From the Features section scroll down and select Windows Server Backup and click next.
On the confirmation page click Install. Once the install has be completed click close.
Windows Server Backup is available to use and run as a scheduled backup and one off.