ps1 cannot be loaded because the execution of scripts is disabled on this system

Question

I run this code to execute PowerShell code from an ASP NET application   System Management Automation Runspaces Runspace runspace   System Management Automation Runspaces RunspaceFactory CreateRunspace    runspace Open    System Management Automation Runspaces Pipeline pipeline   runspace CreatePipeline    pipeline Commands AddScript     servername path     pipeline Commands Add  Out-String     Collection lt PSObject gt  results   pipeline Invoke     runspace Close      But I am getting an error       ps1 cannot be loaded because the execution of scripts is disabled on   this system  Please see  get-help about signing  for more details    The same code runs fine from a command prompt or a windows  Windows Forms  application

User · Answer

I had a similar issue and noted that the default cmd on Windows Server 2012 was running the x64 one.

For Windows 7, Windows 8, Windows Server 2008 R2 or Windows Server 2012, run the following commands as Administrator:

x86

Open C:\Windows\SysWOW64\cmd.exe Run the command: powershell Set-ExecutionPolicy RemoteSigned

x64

Open C:\Windows\system32\cmd.exe Run the command powershell Set-ExecutionPolicy RemoteSigned

You can check mode using

In CMD: echo %PROCESSOR_ARCHITECTURE% In Powershell: [Environment]::Is64BitProcess

I hope this help you.

User · Answer

There are certain scenarios in which you can follow the steps suggested in the other answers  verify that Execution Policy is set correctly  and still have your scripts fail  If this happens to you  you are probably on a 64-bit machine with both 32-bit and 64-bit versions of PowerShell  and the failure is happening on the version that doesn t have Execution Policy set  The setting does not apply to both versions  so you have to explicitly set it twice   Look in your Windows directory for System32 and SysWOW64   Repeat these steps for each directory    Navigate to WindowsPowerShell v1 0 and launch powershell exe  Check the current setting for ExecutionPolicy   Get-ExecutionPolicy -List Set the ExecutionPolicy for the level and scope you want  for example   Set-ExecutionPolicy -Scope LocalMachine Unrestricted   Note that you may need to run PowerShell as administrator depending on the scope you are trying to set the policy for   You can read a lot more here  Running Windows PowerShell Scripts

User · Answer

The problem is that the execution policy is set on a per user basis  You ll need to run the following command in your application every time you run it to enable it to work   Set-ExecutionPolicy -Scope Process -ExecutionPolicy RemoteSigned   There probably is a way to set this for the ASP NET user as well  but this way means that you re not opening up your whole system  just your application    Source

User · Answer

You need to run Set-ExecutionPolicy   Set-ExecutionPolicy Unrestricted  lt -- Will allow unsigned PowerShell scripts to run   Set-ExecutionPolicy Restricted  lt -- Will not allow unsigned PowerShell scripts to run   Set-ExecutionPolicy RemoteSigned  lt -- Will allow only remotely signed PowerShell scripts to run

User · Answer

Your script is blocked from executing due to the execution policy   You need to run PowerShell as administrator and set it on the client PC to Unrestricted  You can do that by calling Invoke with   Set-ExecutionPolicy Unrestricted

[c#] .ps1 cannot be loaded because the execution of scripts is disabled on this system

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