On Windows, we'll use PowerShell by default. PowerShell comes with Windows and is always available, so you don't need to install anything extra. It's a command-line environment where you can run commands to manage your computer, and it's also a full scripting language that can run complex programs.

To open it, press Start and type "PowerShell" (or use Win+X and select Windows PowerShell). We'll run all commands in this course inside PowerShell.

The basic commands you'll need are similar to other systems: cd to change directory, ls or dir to list files, and pwd to show your current directory.