Windows Setup Installation Process
Windows Setup is the program that installs Windows or upgrades an existing Windows installation. It is also the basis for the following installation and upgrade methods:
- Interactive Setup
- Automated installation
- Windows Deployment Services
Windows Setup Installation Types
Windows Setup can perform both clean and upgrade installations. However, it does not perform computer-to-computer migrations. Instead, you must use Windows Easy Transfer, the User State Migration Tool (USMT), or another migration tool to move data from a previous installation to the new operating system.
Custom installations. Windows Setup can perform a custom installation, also known as a clean installation, which saves your previous Windows installation but does not migrate your settings. The previous Windows installation will not boot after a clean installation.
Upgrade installations. Windows Setup can perform an installation that retains your settings and preferences while upgrading your operating system.
Windows Setup Process
The Windows Setup program starts and restarts the computer, gathers information, copies files, and creates or adjusts configuration settings. The following table shows the overall process for Windows Setup:
|Windows Setup phase
Downlevel (for custom installations and upgrades)
- or -
Windows PE (for booting the Windows DVD or booting a custom Windows PE image)
Create specific configurations, making the Windows installation unique.