Can't install composer due to certificate issues

Question

So I have tried all morning to install composer so I can start to use the laravel framework.

I am running windows server r2 standard 64bit with XAMPP on php 7.0

Answer 1

1. Are you running the latest version of Composer?
2. Try to turn off HTTP proxy (if you have one).
3. Read a ticket with the same problem to get more inspiration, if 1 & 2 did not help.