Hello, the installation on localhost is usually done in 3 minutes. Simply create a database and start the installation routine.

If you get an error message during the installation (that the installation did not work), delete the name /installation in the address bar and refresh the page. Then it should actually work.

regards

Hello Isabella_David's

Please follow this blog for Joomla 4 Quickstart and this blog for Joomla 3 Quickstart. Hopefully, it will help you.

Best regards