The study of 14 popular VPN providers found that 11 of them leaked information about the user because of a vulnerability known as 'IPv6 leakage'. The leakage occurs because network operators are increasingly deploying a new version of the protocol used to run the Internet called IPv6.
Aaarggghh!!! The summary does not explain the issue properly at all.
All that happens here is that the user's IPv4 traffic is tunneled through the VPN, but his IPv6 traffic is broadcasted past the VPN.
I'm sure this problem can be avoided with some reconfiguration. The easiest solution would be to simply chuck off the IPv6 subsystem in the operating system.
Be warned: It's a highly technical process that involves "clicking".
I once knew a guy who mastered perfectly the process of clicking, but then I saw him doing a doubleclick. Yep, you heard it right: two consecutive clicks performed quickly one after the other. Before that I didn't know that there are people that can actually do it. Simply put, my mind was blown. It's a very cool trick, you have to see it in real life to fully appreciate it.
There is a Windows update bug that will cause svchost to eat 1gb of ram everytime it does a Windows update check.
There's also another memory eating scenario. Try installing Windows 7 afresh and then try to install all updates from Windows Update. While the installation proceeds, TrustedInstaller.exe starts grabbing gobs of RAM, and the amount keeps creeping up after each update is installed. It can reach 10 gigabytes.
There's many other problems in Windows Update as well. It has always been kind of a hack.
Fun little thing to do:
Take a weak kneed intel Atom board, and do some simple office use tests with it with various older versions of windows. Start with NT4, then use Win2k, the XP, then 7, then 8.1. See how the ability to do simple things degrades as the OS expects more and more hardware just to draw the damned UI.
Go through Vista, 7, 8, and then 10. There would be no meaningful slowdown, and you might even notice that the computer would get slightly more snappy after each upgrade.
Remember to say hello to your bank teller.