You can enable ransomware protection on a Windows MediaAgent.
Note: By default, ransomware protection is enabled on all Windows MediaAgents that have access to a disk library mountpath.
From the navigation pane, go to Manage > Infrastructure.
The Infrastructure page appears.
Click the MediaAgents tile.
The MediaAgents page appears.
Click the MediaAgent.
In the Control section, move the Ransomware protection toggle key to the right.