To install Plesk on Linux or Windows-based servers, use the Plesk Installer utility. The Plesk Installer utility is available for download from http://autoinstall.plesk.com/plesk-installer (for Linux) and http://autoinstall-win.pp.parallels.com/plesk-installer.exe (for Windows).
Plesk Installer can be used either via a browser-based user interface or the command line.
Once the installation is finished, complete the post-installation setup. This includes Plesk initialization and installation of a license key. See the section After Installing Plesk for details.
For more information, visit http://download1.parallels.com/Plesk/Doc/de-DE/online/plesk-installation-upgrade-migration-guide/.