Install
Find newest version from their webpage.
In the window Select components, un-check all options.
In the pyt32.bat file, add
set PATH=%PATH%;C:\Program Files (x86)\Git\cmd
set PATH=%PATH%;C:\Program Files (x86)\Git\bin
Test
Test installation, by clicking C:\WinPython27\WinPython-32bit-xxx\scripts\own\cmdpyt32.bat, and write
git --version