Which two types of updates does Windows 10 automatically install by default?

Windows 10 automatically installs Feature Updates and Security Updates by default. Feature Updates consist of new functionalities, performance improvements, and enhancements provided in major versions of Windows. They ensure that users have the latest tools and improvements available to them. Security Updates focus on patching vulnerabilities and addressing security issues to protect the system from potential threats. The automatic installation of these updates helps maintain system stability, security, and performance, ensuring users benefit from the latest improvements and protection without needing to manually check for these updates regularly.

Service Packs, which were more common in earlier versions of Windows, are not a feature of Windows 10 as they were in the past, as updates are now more incremental with a focus on regular deliveries rather than large service packs. Optional updates are not installed automatically by default; users must actively choose to install these. Therefore, Windows 10’s focus on Feature and Security Updates ensures that users receive crucial updates seamlessly.