I'm trying to use Tails v3.7 via virtual machine. I've already tried VirtualBox, and VMware.
And everything is OK, but..... when I've visited website https://2ip.ru to check my IP-address, I've noticed that my OS is not some version of Linux (Debian, Ubuntu, Tails, etc.) but Windows 7.
In the settings of choosing the type of OS, I choose Linux, and already tried almost everything: Ubuntu, Debian, x32, x64, Other OS x64, etc...
I'm not an expert of Tails at all. But how is that possible?
Where does this fingerprint come from?
Yes, Windows 7 is my OS, from where I'm launching VM with Tails.
But, I don't understand how Tails does not replace this "windows" fingerprint with some Linux fingerprint.
What can fix this OS leak?
I know, that there are some "User Agent Switcher"s extensions can be downloaded for Tor-Browser. And it seems like they do their work. But is it 100% safe? Can I trust them?
Or, first of all, how can I prevent my "Windows 7" OS fingerprint from "leaking" ?