Summarize:

You can connect both laptops using a wireless connection, or you can connect both laptops to a LAN port on your modem or router using an Ethernet cable. Use the following steps to open the Control Panel.  Click the Windows Start button in the lower-left corner. Type "Control Panel". Click Control Panel. It's in the upper-right corner of the Control Panel. It's the green header next to an icon that resembles a blue and green molecule. Homegroup is no longer available on Windows 10. It's the button in the bottom right of the window. Note that the button will only be enabled if you are not currently in a HomeGroup. If you are, leave your current HomeGroup. The first screen will just tell you what a HomeGroup does. Use the drop-down menus to select "Shared" next to the file types you want to share. You will be able to choose from: Pictures, Documents, Music, Printers, and Videos. Depending on your needs, select or deselect the file types. It's in the lower-right corner of the screen. It's at the top of the screen. This will be the password that other devices will need to enter in order to connect to the HomeGroup. Then, click finish.
Connect both laptops to your network. Open your Control Panel. Type Homegroup in the search bar. Click the HomeGroup header. Click Create a homegroup. Click Next on the first screen of the window that pops up. Choose what sorts of files you want to share with other computers. Click Next. Write down the password.