From one computer to another?
First of all, go to your Network connections, click network setup
wizard and choose the option which says "Not connected to the
internet".
If your prompted to restart please do so. Then off your firewall
and antivirus.
Then you need to set a static Ip address, go to your Network
connections and double click your LAN connection icon, under
Internet Protocol, Select "Manually Set IP address".
ANy ip address will do, i recommend 111.111.111.111
As for gateway any will do, as for the other computer do the same
steps as above, but set a different IP address but the same
gateway.
Right click the folder you want to send, and go to sharing. You
should see that you can choose a option for you to share that
folder.
If you want to receive data from the computer which you set the IP
to 111.111.111.111
You use the other computer and open My computer, ujnder the search
bar, type \\111.111.111.111
And copy paste what you want.