Wow man you don't even know what they are for!
You have to find an hidden folder called AppData as ttoroie showed you. Then you have to go into another folder called Roaming and finally you will find the silk folder. There you will find peers.dat and silk.conf
Please find below a guide that will help you find that folder
http://www.pcworld.com/article/2690709/whats-in-the-hidden-windows-appdata-folder-and-how-to-find-it-if-you-need-it.html