Getting Started

I have never subscribed to Adobe Creative Cloud - this is the first time I've downloaded Creative Cloud. I am a student and I subscribed to pay monthly.  When I try to download Photoshop - I get an error message that says that my computer is not compatible.  That I understand - but why can't I download a Photoshop version that will run on my computer in the meantime before I upgrade.  That option is offered to previous users of Adobe CC ( to download previous versions). Is there no way for new users to do this?