Installing GIT on Windows (using cygwin)

1. Get Git
2. Download the cygwin setup runtime http://www.cygwin.com/setup.exe
3. Run it to install cygwin (choose the default option until the 'select package' menu)
4. When you're in the package menu :
   1. choose all relative git packages (in devel : git-completion, git-gui and gitk)
   2. then the openssh package (in net).
5. Open the cygwin window.
   1. Configure the ssh key

In the ~ folder : ssh-keygen -C “me@some.where” -t rsa

    (This will generate your ssh keys into the ~/.ssh folder. If you check into you'll see an id_rsa and id_rsa.pub files)
  - Copy the ssh key into the clipboard : cat .ssh/id_rsa.pub | putclip
  - Go to https://github.com/.
  - In your account part (if you've already signed up), copy the public key (just do ctl+V into the field, this will paste the clipboard). This should look like this : ssh-rsa AAAAB3NzaC1yc ...a lot of things... xX88+2JViQ== me@some.where

via http://redmine.jamoma.org/projects/jamoma/wiki/Installing_and_setting_up_GIT