Have the latest version Windows 10 Preview 6860.
The only security feature installed is the inbuilt Defender.
Other computers in my house are all W8 or W8.1 PRO.
All other computers have Avast free installed, and with the latest 2015 year version comes a Network Safety Checker.
This warns me that my router is accessible from the internet on all other computers in the house.
Is this due to my W10 installation and the fact that Windows need access to my computer ?
And does this compromise the safety of all other computers in the house which all use the same router.
Can all the other computers be safeguarded, and how ?