
In phase 3 user selects region and language settings for user accounts, creates initial admin user account, chooses OneDrive and privacy settings and finally boots to desktop. When phase 1 is done, Windows restarts to phase 2 which is done without user interaction and when ready automatically restarts to phase 3. In phase 1 user selects language and keyboard layout settings for system accounts, enters product key for specific edition or selects edition manually if product key is not entered at this stage, and selects disk and partition to install Windows.

In normal install, user interaction is required in phases 1 and 3, phase 2 being run automatically without user interaction. Boot from install media, run Windows Setup.

Installing Windows 10 is done in three phases:
