@Noobita 

Hi, 
1) If you want to set the Live View page of the Tapo C200 to privacy mode at a specific time, you can use the Automation feature on the Tapo app to achieve it.
How to create Smart Action (automation or a shortcut) of my Tapo devices?
e.g: 
Trigger:  specific time
Action: turn on or off the Privacy mode of the C200.

If not, please describe your usage scenario in detail.

2) You can refer to the link below to stream the camera on a PC, or if you have other requests, please describe your usage scenario in detail.
How to view Tapo camera on PC through RTSP stream?
 

Best Regards