2) Configure the HOME environment variable in Windows, so that MSYS2 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 MSYS2 uses its own home directories which are located under [MSYS2-INSTALL-PATH]\home.