Powershell: Execution Policy

I have been running my code in the last few months doing this -

Set-ExecutionPolicy Unrestricted

But something strange is happening, and I always get this error -

Windows PowerShell has successfully updated your execution policy, but the setting is overridden by a policy defined in a more specific area. Due to overrides, your shell will retain the current effectiveness of the No Limit execution policy. Enter "Get-ExecutionPolicy -List" to view the execution policy settings. For more information, please see "Get-Help Set-ExecutionPolicy".

I referenced these links but no luck -

• http://blogs.msdn.com/b/pasen/archive/2011/12/07/set-executionpolicy-windows-powershell-updated-your-execution-policy-successfully-but-the-setting-is-overridden- by-a-policy-defined-at-a-more-specific-scope.aspx

• http://blog.whatsupduck.net/2010/09/issues-with-configuring-powershell.html

• http://www.howtogeek.com/106273/how-to-allow-the-execution-of-powershell-scripts-on-windows-7/

  I am loading Powershell using C # in 64-bit Windows 7 through a 32-bit Winforms application using .Net 4.0

  What is the specific setting that I need to do so that I don't get this error on any system? [Everything is working fine]. What should these values ​​be on any system so that I can easily call Powershell from C # -

Get-ExecutionPolicy -List

MachinePolicy                                                           
UserPolicy                                                           
Process                                                        
CurrentUser                                                        
LocalMachine