How do I remove msysgit's right click menu options?

64-Bit Windows

From a cmd.exe window, run these commands:

cd "C:\Program Files (x86)\Git\git-cheetah"
regsvr32 /u git_shell_ext64.dll

32-Bit Windows

From a cmd.exe window, run these commands

cd "C:\Program Files\Git\git-cheetah"
regsvr32 /u git_shell_ext.dll

Windows 10

If you are on Windows 10 and the previous methods did not work try to uninstall the application and reinstall it. But be careful during the installation process unchecking Windows explorer integration

Only this registry removal - nothing else - worked for me on Win8.1, as of recent versions:

Windows Registry Editor Version 5.00

[-HKEY_CLASSES_ROOT\Directory\background\shell\git_gui]

[-HKEY_CLASSES_ROOT\Directory\background\shell\git_shell]

[-HKEY_CLASSES_ROOT\Directory\Shell\git_gui]

[-HKEY_CLASSES_ROOT\Directory\Shell\git_shell]

[-HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Directory\background\shell\git_gui]

[-HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Directory\background\shell\git_shell]

[-HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Directory\shell\git_gui]

[-HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Directory\shell\git_shell]

You can also disable single entries using CCleaner.