The Chew-WGA 0.9 tool works by patching specific system files that are involved in the WGA validation process. By altering these files, the tool effectively disables or circumvents the checks that Microsoft's servers perform to verify the authenticity of a Windows installation. This allows users to access all Windows 7 features, receive updates, and avoid notifications related to the use of a non-genuine Windows copy.
If you suspect Chew-WGA 0.9 is on your system and causing issues: Chew-WGA 0.9 Windows 7 Patch Activator
Note: There is no reliable "undo" tool for Chew-WGA. The safest course is backing up your data and performing a clean Windows reinstall using legitimate installation media. The Chew-WGA 0
Microsoft's free Windows 10 upgrade for assistive technology users still works unofficially. Clean install Windows 10 and enter your Windows 7 key during setup. Even if it rejects the key, you can often install without a key and then activate after installation via the activation troubleshooter. Note: There is no reliable "undo" tool for Chew-WGA