Installing kirby 3

Hi have Kirby 2 installed on Windows xampp localhost.
Like to upgrade to Kirby 3 - not upgrading any sites, once I’ve installed / upgraded to Kirby 3 I’ll create the new site.
Just like a pointer to how to install kirby 3.

Thanks for any help
David

There are different ways to install Kirby 3, the simplest is to download the Starterkit or the Plainkit and put the unzipped folder into your public html folder (whatever that is called on windows Xampp, probably /htdocs); https://getkirby.com/docs/guide/installation

Other options:

Installation with git: https://getkirby.com/docs/cookbook/setup/git
Installation with composer: https://getkirby.com/docs/cookbook/setup/composer

If this doesn’t help, please be more specific what exactly is not working as expected.