String[] dirSSS = Directory.GetDirectories("D:");
dirSSS[0]; // Output: "D:\ref" (without quotes) <-- no this directory on disk "D:"!
Environment.Version; // "5.0.13" (Net Core)
Environment.OSVersion; // "Microsoft Windows NT 6.3.9600.0"
// VS (Russian):
// Microsoft Visual Studio Professional 2019
// Версия 16.11.9