Copy file/folder from windows to Linux PC using SCP Command

I want to copy a few folders from Windows PC to Linux machine. I am using Putty and connected to my Linux PC. In PuTTY, i executed following command where i am trying to copy files from Windows folder path to the present folder in Linux:

scp -r user_name@IPAddr_Windows_PC:C:\Test\Folder .

I am getting a connection refused error. Please let me know if anything is wrong with the command that i am using.