Tutorial Install Debian 9 Stretch

Debian 9 "Stretch" just came out, and as far as Linux distros go, Debian stands apart as a distribution meant for stability. Sure, most desktop users might choose Ubuntu or Fedora for their desktop PC, while users who are more willing to get their hands dirty might opt for Arch or Gentoo. Hackers might gravitate to Kali, while the paranoid among us might look for something like TAILS.
There's a lot to take in with a Debian release, but there are a few key notes for the average desktop user.

What is Debian?
Debian is a free (as in freedom) GNU/Linux operating system created by volunteers. The operating system uses APT to manage packages and software, not unlike Ubuntu. In fact, Ubuntu is known as a Debian-based operating system in that most of the core utilities you find in Ubuntu (like APT) come from Debian.
And if you're wondering how Debian code-names its releases, the names are taken from Toy Story characters.

How To Get Debian 9 ?

Download Debian 9 Stretch

How to Install ?

Insert a disk for installation of Debian 9 Stretch and reboot your computer. Next, select installation type on the screen below. On this example, select [Graphical install] to proceed.
Select the language which is used during the installation.
Select your country for TimeZone setting.
Select your locale. The selected locale will be the default locale of the System.
Configure keyboard layout. Select Yes or No to detect your keyboard automatically.
Set your server's hostname you'd like to set.
Set your network domain name.
Set root password.
Set a user account. (full-name for display)
Input a user name used on the system.
Set password for a user added in pre-section.
This is the section for configuring partition. This example select [Guided with LVM] like follows.
Select a disk to create partitions.
Select a type of partition layout you'd like to set.
It's the confirmation for configuring partition. If it's OK, answer [Yes].
It's completed to configure partitions. If it's OK, click [Continune] to proceed.
It's the final confirmation for changing disks. If it's OK, answer [Yes].
If you'd like to install more packages in another CD/DVD, answer [Yes].
If you'd like to use a network mirror, answer [Yes].
Answer [Yes] to participate package usage survey as an anonymous.
Select software groups to install. This example proceeds with only [Standard system utilties] like follows.
Answer [Yes] if you'd like to install GRUB on MBR.
Select a disk you'd like to install GRUB.
Installation completed. Remove the installation disk and Continue. Then system will reboot.
After rebooting system, login prompt is shown like follows. Login with a user set in installation.