Hello, I have well received the xml file with the key inside, but I can't listen to the video to learn to install it as I am in an open space office, do is it possible to get written explanations ?

Hello Laurent,

You can find written instructions to install Liferay in our User Guide at https://www.liferay.com/documentation/liferay-portal/6.2/user-guide/-/ai/installation-and-setup-liferay-portal-6-2-user-guide-15-en.