I\'m working with several repositories, but lately I was just working in our internal one and all was great.
Today I had to commit and push code into other one, but
You can remove the line credential.helper=!github --credentials from the following file C:\Program Files\Git\mingw64\etc\gitconfig in order to remove the credentials for git
credential.helper=!github --credentials
C:\Program Files\Git\mingw64\etc\gitconfig