We’ve written several posts on Di2 software. For an overview of those posts please visit the Di2 Software posts archive.
In order to help you set up and configure your Di2 system Shimano has made several software packages available for Android, iOS and PC.
The Windows version of the e-Tube software supports Windows 7 and newer. An older version of the Software is available for Windows XP, but it’s heavily outdated.
Download the Windows software on the E-Tube Project download page.