Which method keeps all applications and settings during an OS upgrade?

An in-place upgrade is the method that allows for the upgrade of an operating system while preserving all existing applications, settings, and files. This type of upgrade effectively replaces the current operating system files with new ones, allowing users to maintain their current environment without the need for reinstalling applications or reconfiguring settings.

This is advantageous for users who want to upgrade to a newer version of the OS without the hassle of setting everything up again. It's typically used in scenarios where users already have a personalized setup and want to ensure their productivity is uninterrupted.

In contrast, a clean install removes all existing data, applications, and settings, resulting in a fresh start. Cloud installations and network installations refer to the methods of obtaining or installing the OS but do not inherently dictate whether the existing data will be preserved. Therefore, for users looking to upgrade while maintaining their current environment, an in-place upgrade is the correct choice.