Remote Desktop / Laptop

I want to be able to remotely enter a laptop / personal router / modem undetected. The modem router is a Zyxel purchased from Century Link. have the laptop here with me, but can not be logged in the window. Windows 10 Home in addition. HP Serial Number # CND6452120 Model # 15-ba009dx Product: X7T78UA # 8BA. I also have windows 10 home, both exclusively bearings. My server modem / router, Comcast / Xfinity Xfi leased. I have an Express VPN subscription.