My McAfee anti-viral, anti-hack, anti-this, anti-that software service updated itself a little while back. Aside from an irritating attempt to assume control over some security functions that I use other tools for, it dropped in a pretty large set of generally reasonable functions to protect my system. Let me qualify that. That’s “generally reasonable” for Windows. For just about any other modern operating system, they’d be redundant or meaningless.
The problem is that even after disabling a lot of the new functionality, this update also did a fine job of reducing the overall performance of my machine by about 30 percent. The incredible load imposed by this class of “defensive software” is a direct result of major architectural flaws in Microsoft Windows.