Hi Jeev, I hope your doing well despite the problem you are experiencing now and I'm sorry for that. For that let me try to assist you.
You can access your display setting by right clicking in the empty desktop and select Display Settings. Click the monitor in which you want to duplicate. Select Duplicate Desktop in the Mulitple Displays box. It will ask you for confirmation. You can do this for every monitor to customize their use.
Here is a link on how to personalize or customize multiple monitors
https://support.microsoft.com/en-us/windows/how...
I hope this helps. Please let me know if I didn't address your problem. Don't hesitate to ask for further assistance.
Regards,
Arnel