Looking at your images, the command prompt says "C:\Users\Baetis". But when you typed the command, you used a French translation "C:\Utilisateurs\Baetis (...)" instead.
This is probably because you're using a translation tool. For the command to work, please do not translate the following text:
Code: Select all
cd C:\Users\Baetis\Documents\Prepar3D v4 Add-ons\A2A\A2A\Cessna182
Nick