The biggest problem with any Windows operating system is the security, whether it's about viruses or back doors, and this spyware “message” in a Linux system about Windows drivers shows just how much of a problem security is for Microsoft's OS.
People usually talk about Linux and Windows in different terms when it comes to vulnerabilities exposed by third-party malevolent agents. Usually, Linux is protected through the way it's built. It doesn't mean it's perfect, just that it's not predisposed to the same problems.
Windows, on the other hand, is a lot more vulnerable and it's a lot easier to harm it. The people who make spyware, malware, or viruses know this very well and it shows in the way users of that system are treated.
Someone on Reddit noticed a funny-looking message generated by a website in the browser, a pop-up that is usually blocked if you have some kind of ad blocker in place. The user was prompted with the famous PC Driver Kit notification, but the website correctly identified the OS, in this case Ubuntu.
The user was urged to upgrade the Ubuntu Drivers, the supported OS was Ubuntu, and the manufacturer was Microsoft. Had he opened this pop-up with Windows (and if he was a little bit gullible), the system would have been compromised immediately.
So, the next time you are surfing the Internet in your Windows OS and you see this kind of message, try to remember that Linux is a much safer alternative and that you won't have to worry about any problems like this one.