https://nerc-ceh.github.io/version_control/install_sourcetree_windows
Here are instructions on how to install SourceTree on Windows. This is a pre-requisite needed to do the exercises in the Version Control Workshop.
In Windows Explorer Open Y:\user_apps\SouceTree\SourceTreeSetup-2.0.20.1.exe and fill in the details it asks for as follows (NOTE: the official download is at https://www.sourcetreeapp.com that you may wish to use if outside CEH):