Hello does anyone know of a website where you can download Fortnite as zip or any other archive format? I have no admin rights.
And what is that supposed to bring? To start you need admin rights.
Not at all
Fortnite does not and will not exist as a zip file or the like. The game is too big to be repacked with every update.
I can't say whether it is the case with Fortnite, but most online games use their admin rights when installing or starting to install anti-cheat devices and to be able to offer at least somewhat better protection.
You can try to transfer the installation directory from another system yourself, but I doubt that it will work just like that.