Erro na instalação do composer

boa devs, estou com um B.O na instalação do composer ja fiz de tudo pratricamente vitutoriais de possiuveis erros e não consigo solucionar o meu que este daqui

The Composer installer script was not successful [exit code 1].

OpenSSL failed with a ‘certificate verify failed’ error. This indicates a problem with the Certificate Authority file(s) on your system, which either cannot be found or may be out of date.

Script Output:
The “https://getcomposer.org/versions” file could not be downloaded: SSL operation failed with code 1. OpenSSL Error messages:
error:0A000086:SSL routines::certificate verify failed
Failed to enable crypto
Failed to open stream: operation failed