Q. What are the prerequisites to install and use Windows PowerShell?
A. Windows PowerShell requires the .NET Framework version 2.0. It is available on both the Microsoft Download Center as a redistributable package and through the Windows Update and Microsoft Update services.

Q. How come I cannot run scripts when I first install Windows PowerShell?
A. By default, a security feature in PowerShell, called the “Execution Policy,” prevents scripts from running. To understand the different execution policies available to you, type get-help about_signing in the Windows PowerShell prompt. After selecting an execution policy, use the Set-ExecutionPolicy cmdlet to set it. For instance, type Set-ExecutionPolicy RemoteSigned in the Windows PowerShell prompt.

Q. Are there any Windows PowerShell scripts available?
A. Yes. The Windows PowerShell page on the TechNet Script Center has a number of sample scripts.

Q. Are there any Windows PowerShell training resources available?
A. Yes. Please refer to the Windows PowerShell blog for more information.

Please See this Windows Default Page for Power Shell 1.0 from Microsoft