How To Know Windows Installation Date

Sometimes you may need to date OS installation. You may want to know how old your OS or any other information associated with your system. Windows does not provide direct information about the installation date of OS installation. But you can see the date of OS installation from a command prompt by giving some syntax for it. With following command you can see all the details about the manufacturer and about your operating system. In this tutorial I focus on the Windows installation
Following ways:

Open a command prompt window by going to the Run menu and type "cmd" (without the quotes).
type "systeminfo" (without the quotes).

Wait a minute because it will look for information about windows installation date and other information.

What I give the red box is the date when I install windows on my computer. You'll also find a mainboard which brand we use, the output date BIOS, processor type, RAM size, and others.

So ... What's the date on your Windows install ... ????? There are distinguished not more than 3 years of age his installan Windows??