Hi there,
follow these few steps
1. Go to Control Panel -> System -> Remote tab
2. Put a thick in the "Allow users to connect remotely to this computer"
3. Confirm with OK
4. Go to Control Panel -> Network connections
5. Right-click on your LAN adapter, under General tab select Internet protocol (TCP/IP) and click Properties
6. Assign IP manually (for example 192.168.0.2 - has to be in the same range as the IP on the other computer, but different!) and Subnet mask (the same as on the other computer - 255.255.255.0)
7. Assign Default Gateway (which is the assigned IP of the other computer, in this case 192.168.0.1)
8. Assign the same DNS as on the first computer
Thanks