I have the same issue on a new install of Windows 10. I am a paid customer and I have checked the “Premium Support Forum” without luck. I have tried searching for “This webpage is not available”, and “ERR_ICANN_NAME_COLLISION” but all I get is “Sorry, no results were found for this query.”. I looked at my hosts file, but without a reference of what it should look like, I don’t know if mine “looks good”. Again, I tried looking up “hosts file” in your Premium Support Forum and could not find anything with that information.
Can you please post instructions on what the host file should look like, and hopefully complete instructions on how to resolve this error. I am sure we are not the only ones experiencing this.