And.regardless of install - I would think that if it wants to know about all your devices, it would poll at regular intervals after the install. And I should probably check for any attempts to reach out to my Bluetooth devices. I would like to see if the upgrade turns on your wireless card to see what other devices are on your network or in your vicinity. I do have an AirPcap adapter so I could do that at a later date. One of the things I did not do during the upgrade was check the wireless traffic. It will be interesting to find out if they all lead back to Microsoft or not. There were multiple public IPs in the capture. But this will tell me what servers it connected to during the update. So why would it need an internet connection to complete? There were quite a few packets in the capture and it's going to take a while to go through them. You think that you've already downloaded the operating system and all it has to do is install it. Note that the actual download of the software occurred "in the background" when I "reserved" my copy of free Windows 10. For the most part, this should capture traffic to and from the device as it is installing and upgrading. I spanned the port to a connection on another laptop where I was running Wireshark to capture the packets being sent and received by the upgraded device. Then I plugged my ISP provider's router into a switch - which then connected to the laptop being upgraded.
![download airpcap for windows 10 download airpcap for windows 10](https://www.acrylicwifi.com/wp-content/uploads/2014/04/WiFi-packet-Sniffer-Windows-Acrylic-WiFi-Professional.png)
So what I did for my install was that I turned off all the networking components on the laptop except for Microsoft Client and IPv4.
![download airpcap for windows 10 download airpcap for windows 10](https://img.informer.com/screenshots/211/211025_4_3.png)
Microsoft has this set up as a "Windows Update" in just about every way (looks like the way I upgraded my mac.) It's a really easy install from the user perspective. Seriously, if you need that either let your kids do it for you or shut your eyes, cross your fingers and click.