Software Deployment with Group Policy

To deploy software, create a new GPO object (one that applies to Users or Computers)

Edit the new GPO.

Goto: "Computer Configuration" -> "Policies" -> "Software Settings"

Right Click "Software Installation" Click: New -> "Package"

Select the MSI you want to deploy.

Choose the deployment type, Addigned for Computer Deployments, Published for User Deployments.

Assigned is basically a forced install. Published allows the user to interact with the install and optionally allow user removal of the package.