Microsoft will discontinue support for Windows 10 on October 14, 2025. Extended Security Updates (ESUs) will be available for a maximum of three years at approximately per device. Windows 10 is currently the most targeted among older Windows operating systems, facing high-severity vulnerabilities. Organizations should conduct an asset audit, evaluate ESUs, migrate critical systems to the cloud, and establish a decommission plan for legacy systems. Morphisec offers a lightweight security solution for legacy systems, utilizing Automated Moving Target Defense (AMTD) technology to protect against advanced threats without the need for updates or internet connectivity.