PowerShell is an advanced form of command prompt. It is extended with a huge set of ready-to-use cmdlets and comes with the ability to use .NET framework/C# in various scenarios. Windows includes a GUI tool, PowerShell ISE, which allows editing and debugging scripts in a useful way. If you are using it frequently, you might find it useful to add 'Edit with PowerShell ISE as Administrator' to the context menu.
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