There are many tools that have the objective of finding out all the data of the system's components, whether hardware or software, but none of them are as complete as SIW or System Information for Windows. As well as checking each corner of the operating system, searching for all kinds of information, it includes a collection of utilities that you will surely find interesting.
All the information about your Windows
Like all these kinds of applications, SIW allows you to know things about all the components that you have installed on Windows, as well as the version of each of the programs. Moreover, the hardware check is very informational because it shows data that would be practically impossible to find otherwise.
But SIW not only allows you to view system information, but it also includes a wide array of really interesting tools like a password revealer, a utility to know the CPU load and temperature in real-time as well as a program to change our network interface controller's MAC.
And all of this with a really clear interface, that is nearly a standard in this kind of application, so it won't be at all complicated in a couple to get the hang of the application in a matter of minutes.