By default on Windows Git places global .gitconfig in c:\\documents and settings\\user\\
How can I change that position so .gitconfig is stored in
If you are on windows and having problem either changing environment variables or mklink because of insufficient privileges, an easy solution to your problem is to start git batch in another location.
Just right click on Git Bash.exe, click properties and change the "Start in" property to c:\my_configuration_files\.