Microsoft allows anyone to download Windows 10 for free and install it without a product key. It’ll keep working for the foreseeable future, with only a few small cosmetic restrictions. And you can even pay to upgrade to a licensed copy of Windows 10 after you install it.
Can you legally download Windows 10 for free?
Microsoft is offering Windows 10 for free for customers who use “assistive technologies”. All you have to do is visit their Accessibility website and hit the “upgrade now” button. A tool will be downloaded that will help you upgrade your Windows 7 or 8.