Historically, it has been compatible with Windows Updates, meaning it doesn't "break" when the system updates.
Unlike temporary KMS activators, it creates a "genuine" status that lasts indefinitely.
Since Windows 7 no longer receives security updates, using any activator doesn't protect you from modern security vulnerabilities. The Bottom Line
Supports Windows 7 (Starter to Ultimate) and Windows Server 2008/2012.
The tool is lightweight and works quietly in the background without affecting performance.