It seems like you successfully activated your Windows software using a valid product key, which means your copy is genuine. The process you described involves accessing the activation section through the Control Panel, entering the product key from the sticker, and following the prompts to activate the software.
If you encounter the message "You are a Victim of an Illegal Windows," that would indicate that the software has identified the product key as not genuine or pirated.
For Windows 7, activation can also be done via phone, where you would have to follow specific steps provided during the activation process to activate Windows over the phone.
It's great to hear that your activation process went smoothly and your Windows software is...