|I like to use analogx's proxy. When installed on the newest system with all the good av and antimalware the connection to the other computer is also protected. Best of all, only a few ports are proxied to the second computer. You can limit it to http if you want (port 80). |
If you really just use it for internet then you could also install a number of linux OS's that are made for children.
"Best Practices", Event viewer, host file, perfmon, antivirus, anti-spyware, Live CD's, backups, are in my top 10