Hi Aleksander,
I am not from Laminar Research; just a flight simmer from downunder.
My comments in English are based on the fact you have purchased the official version of X-Plane from Laminar Research or Aerosoft who are licenced by Laminar to sell X-Plane. A steam version is not an official version. It is a hybrid or modified version.
There is a simple solution to your problem.
During the installation process you will see box advising where X-Plane will be installed. Obviously you have seen it, having read your original question. Now next to this "box" there is a tab that says "Browse" (English). You need to click on this box and it will or should ask you where do you want to install. In your case you want to use drive "D". so select the drive. The installation process should start immediately.
The methodology is exactly the same as selecting where you want to move a file to using "File Manager" (Windows based operating system). The process is quite easy and if followed X-Plane will be on your "D" drive.
You may have to use a translator back into your language.
Good luck.
Glenn