Sometimes we’re just curious when did we purchased our PCs or laptops or maybe we just want to know the ages of our PCs or laptops. The easiest ways to know this is by figuring out the date of the windows installation (I assumed you used windows for your laptops or PCs). Here is a simple trick that could help you trace back your windows installation date. First, open your command prompt (CMD), Start ->Run -> Type CMD -> Enter or if you are using windows vista, Start ->All Program -> Accessories -> Command Prompt

Now, in the command prompt, type systeminfo | find /i “install date” or systeminfo | find “Original Install Date”
Then hits enter, your command prompt should produce result such as C:\Documents and Settings\user>systeminfo | find /i “install date” Original Install Date: 2/19/2006, 01:10:58 PM