Installing Windows involves the following steps:
System check: Setup.exe verifies that the minimum hardware requirements are met and that antivirus software is not running, and it runs ScanDisk to check the integrity of the hard drive.
Information collection: Windows collects the information that it needs to complete the installation. The information may come from the user, a script or an existing version that is being updated. This information includes the type of installation (typical, compact, portable or custom), the user's name, the PC's name, and more.
Copying files: The Windows files are copied to the hard drive.
System restart: The PC is restarted into Windows. The operating system then makes its modifications to the system files (win.ini, system.ini, and the registry) and adjusts the config.sys and autoexec.bat files, if present.
Hardware setup: Windows searches for any Plug and Play and legacy devices on the system and configures them. You will need to have any third party drivers available on floppy disk or CD. The system is restarted once again after this step.
Depending on your computer either start the installation using a CD-ROM or a floppy disk.