UPDATE: Same Error when trying to install Chrome, so this is NOT just a Voice/Hangout Error - IMO(guess) it is a Windows 8 "issue", most likely their Firewall, which I did try to change settings in it to overcome, but to no avail, thank you.
UPDATE #2: I found a "stand-alone" version of Google Chrome, installed as admin, and it wouldn't connect to the internet either. Next I tried turning off Win8 Firewall, still Chrome would not connect to the internet. My next mission is to find a Win8/64bit non-Windows firewall to replace MS's Firewall, thank you.
Help please: GoogleVoiceAndVideoSetup.exe + Windows 8 (firewall) installation problem.
Win8's Firewall (W8FW) is different than what I'm used to, but I "found" W8FW and tried to "allow" the Google Installer, however nothing Google is currently installed, so I couldn't "allow" it into W8FW's allowed programs list.
Next I disabled W8FW (both private & public) then tried installing G+Hangouts again, yet received the exact same error message?!
I click the button called "Show me help for this issue", but all that does is load the homepages for general Google support groups, rather than a list of specific installation tips.
Not sure what to do next. Thanks if you can help me.