Parallels Desktop 12 for Mac 12.1.3 (41532) for Parallels Desktop addresses overall stability and performance issues, and includes the following fixes and improvements: Resolves an issue with request to enter Mac administrator password on every Parallels Desktop start. The latest version of Parallels Desktop for Mac brings a host of additional improvements along with macOS Sierra support, including support for the Windows 10 Xbox app and a handy collection of tools. ”Parallels Desktop is the easiest, fastest, and most tightly integrated app for running Windows apps or the Windows desktop in Apple OS X.”Edward Mendelson, “The latest version of Parallels, the popular Windows virtualization tool for Mac OS X, almost feels like its trolling Apple.”.