This write-up is for cybersecurity education only. Do not download or run Chew WGA or similar software on any machine you care about.
Microsoft quietly still allows free upgrades using a Windows 7 or 8 key during installation. This is legal and supported.
If you cannot afford Windows, consider switching to:
: Many users turned to it for "educational purposes" to test the resistance of Windows security systems. The Risks of Downloading Chew WGA