Missing files in MetroStation Workset

Under the Example Workspace under Worksets, I have the MetroStation. I have the following 3D models:

Architectural

CableTrays

ConnectingTunnels

DEM

Piping

PointCloud

PointCloudMeshModel

Station - Structural

Ventilation

Visualization_Architectural

I accidentally deleted the files that I'm missing from this folder and I can't recover them since I'm unable to uninstall the program on my computer. 

Also, something that is off topic, how can I follow along with the YouTube tutorials provided by Bentley Institute if I don't have the files for them? For example, MicroStation 2D Basics. I don't have the MicroStation_Basics Workspace. 

Thank you.