L_D_G :
USAFRet :
If you can access it from outside, maybe someone else can as well.
I have Avast Free and the basic Windows Firewall. Would you recommend something else?
The Windows Firewall here does absolutely nothing, because you would be intentionally drilling a hole in that firewall to access it from outside.
Recommendations?
Another PC, with only movie/video/whatever on it, in the DMZ area of your router.
This is walled off from the rest of your LAN.