Windows 10 End of Life is on October 14, 2025, at which point Microsoft will stop providing security updates, technical support, and bug fixes. While the operating system will continue to function, running it after this date will leave your PC vulnerable to security threats. You can prepare by upgrading to Windows 11, replacing your device with a Windows 11-compatible one, or enrolling in the paid Windows 10 Extended Security Updates (ESU) program for continued security patches.