2) Configure the HOME environment variable in Windows, so that Cygwin and TortoiseGit are using the same home directory and global git-config. Use the normal Windows notation here (e.g., "C:\Users\USERNAME"). By default, TortoiseGit uses the Windows home directory which is normally located under c:\Users and Cygwin uses its own home directories which are located under [CYGWIN-INSTALL-PATH]\home.