I am trying to push files to my remote repository from my local repository and I see this
fatal error : fatal: unable to access \'https://github.com/viniv
In Windows, if you've any third party firewall (or internet activity monitor) installed, then configure them to allow your client to access outside connection.
If there aren't any 3rd part firewallls, then go to control panel, search for firewall. Inside the firewall panel, select Add a new exception (or similar option). Allow the git client both inbound and outbound access.