Difference Between 'Try Zorin' & 'Install Zorin'?

I've decided to replace Gnome with KDE as it is more customisable but have you tried Zorin with KDE as a DE?

I have been running it with KDE for over a year. It's responsive and less a memory hog than gnome.

I have installed it too but how customizable is the login screen compared with Gnome on Zorin?

An alternative to cloning & wiping the HD is to try/install Zorin to a separate HD. I have a 110 GB SSD installed; if there's a problem, it can be reformatted and the process retried.

Fortunately I am still using Win7 (non-UEFI).