Microsoft is transitioning away from Windows 10, which will reach its end-of-life on October 14. Users have 48 hours to take action regarding potential vulnerabilities. Windows 10 users will receive their last general security updates in October, but ongoing protection will only be available through enrollment in the Extended Security Updates (ESU) program, which is free until October 13, 2026. Approximately 40% of Windows users, or around 560 million, are still on Windows 10. Failing to enroll in the ESU could leave devices vulnerable to security threats. Enrollment requires a licensed Windows 10 PC, a Microsoft Account, and saving settings to OneDrive. Users can also upgrade to Windows 11 for enhanced security if their hardware qualifies. The ESU is a temporary measure, and enterprise users have alternative, potentially more costly options for long-term solutions.