"Do you want to allow the following program to make changes to this computer?" We have all seen this pop-up, but what makes this highly annoying Windows feature so common?
Why does Microsoft insist on asking you each and every time: "Do you want to allow the following program to make changes to this computer?" Considering you have just clicked on a program to install it, it's not like you don't know you are installing a program.
Well, as it turns out, this is actually a rather important feature in Windows. Versions of Microsoft windows, right up to- and including Microsoft Windows XP, would simply run a program directly after a user clicks on it. And, as convenient as this might seem, it can actually cause a variety of devastating consequences. Windows would run any program, whether is it authenticated (trusted) or not. Even potentially malicious programs that could alter your operating system code would run as smoothly as Microsoft Word, for example, and the user wouldn't know any better.
Since the release of Windows Vista, Windows would immediately run User Account Control, or UAC for short, to ask the user whether or not they want a specific program to run, and list potentially harmful warnings when necessary.
Take a look at the video below by the YouTube channel, Tech Quickie, on The Most Annoying Windows Feature.