Microsoft has discontinued support for Windows 10, which still runs on approximately 1 billion PCs, with about 500 million eligible for an upgrade to Windows 11. Many users are resistant to upgrading due to dissatisfaction with the new interface, compatibility issues, intrusive advertisements, and aggressive AI integration. The potential for cybersecurity vulnerabilities increases as Windows 10 is no longer supported, and an estimated 1.6 billion pounds of electronic waste may result from this discontinuation. Microsoft is pursuing an "AI PC" vision, aiming to integrate AI features into the operating system, while acknowledging user feedback and concerns about usability.