curl - unknown ssl protocol error in connection to repo.magento.com:443 -

i following error after downloading cacert.pem file https://curl.haxx.se/ca/cacert.pem, , adding curl.cainfo=c:/xampp/apache/cacert.pem in php.ini

how rid of problem??

i got problem solved changing registry values: hkey_local_machine\system\currentcontrolset\control\securityproviders\schannel\protocols\ssl2.0\client "disabledbydefault"=dword:00000000(0)