you must set the HOME environment variable to your chosen path(I suggest c:\git-push)
You can do it by two way in windows:
Using Command Prompt you can set this environment variable by following command:
set HOME="c:\git-push"
Under Windows, you may set environment variables through the "Environment Variables"
button on the "Advanced" tab of the "System" control panel. Some versions of Windows
provide this control panel through the "Advanced System Settings" option inside
the "System" control panel.
You also need git install on your machine.If you don't have download from here.