Illegally validating microsoft
When you install Windows 7 by any means, you are prompted to provide a valid product key to activate the Windows.
You can download your Windows 7 ISO image from the Microsoft Software Recovery site by providing your valid product key.
Just visit the Microsoft Software Recovery website and follow three simple instructions to download the Windows 7 ISO image.
You will have to provide the Product key that came with your original Windows 7.
This means you get to use Windows 7 Trial for up to 240 more days and 240 120 = 360 days, that is almost a year.
If you are okay with using slmgr -rearm command after every 30 days, then you can easily use Windows 7 for free with all the features for almost a year.