Marcellot, this is categorized in Installing Zorin OS, but I wonder if it being moved to Feedback Forum may be more productive.
The only step needed to move it is to click on the Edit function on the title, then the category drop down menu to select the new category. No pain, there.
But as feedback, the troubles you are reporting are very valuable.
Otherwise, you may be seeking troubleshooting on the non-working issues. Would you like to troubleshoot the above concerns?