set-executionpolicy-01 powershell

Set-ExecutionPolicy | Taking on PowerShell one cmdlet at a time | Weekly Blog

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This is a part of an on-going blog series written by Adam Gordon. Each week, Adam will walk you through a PowerShell command, showing you when and how to use each one. This week, Adam covers Set-ExecutionPolicy.

When to use Set-ExecutionPolicy

Anytime you need to set the PowerShell execution policies for Windows computers.

An execution policy is part of the PowerShell security strategy. Execution policies determine whether you can load configuration files, such as your PowerShell profile, or run scripts. And, whether scripts must be digitally signed before they are run.

The Set-ExecutionPolicy cmdlet’s default scope is LocalMachine, which affects everyone who uses the computer. To change the execution policy for LocalMachine, start PowerShell with Run as Administrator.

 

How to use Set-ExecutionPolicy

Set an execution policy:

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope LocalMachine

Get-ExecutionPolicy -List

The Set-ExecutionPolicy cmdlet uses the ExecutionPolicy parameter to specify the RemoteSigned policy. The Scope parameter specifies the scope value, LocalMachine. To view the execution policy settings, use the Get-ExecutionPolicy cmdlet with the List parameter.

Set-ExecutionPolicy powershell command

 

Apply the execution policy from a remote computer to a local computer: 

Invoke-Command -ComputerName Server01 -ScriptBlock { Get-ExecutionPolicy } | Set-ExecutionPolicy

The Invoke-Command cmdlet is executed at the local computer and sends the ScriptBlock to the remote computer.

The ComputerName parameter specifies the remote computer, Server01.

The ScriptBlock parameter runs Get-ExecutionPolicy on the remote computer.

The Get-ExecutionPolicy object is sent down the pipeline to the Set-ExecutionPolicy.

Set-ExecutionPolicy applies the execution policy to the local computer’s default scope, LocalMachine.

Set-ExecutionPolicy powershell command

 

Remove the execution policy for the current user:

Set-ExecutionPolicy -ExecutionPolicy Undefined -Scope CurrentUser 

Get-ExecutionPolicy -List

The Set-ExecutionPolicy cmdlet uses the ExecutionPolicy parameter to specify the Undefined policy. The Scope parameter specifies the scope value, CurrentUser. To view the execution policy settings, use the Get-ExecutionPolicy cmdlet with the List parameter.

Set-ExecutionPolicy powershell command

Set-ExecutionPolicy powershell command

 

Set the execution policy for the current PowerShell session:

Set-ExecutionPolicy -ExecutionPolicy AllSigned -Scope Process 

Get-ExecutionPolicy -List

The Process scope only affects the current PowerShell session. The execution policy is saved in the environment variable $env:PSExecutionPolicyPreference and is deleted when the session is closed.

The Set-ExecutionPolicy cmdlet uses the ExecutionPolicy parameter to specify the AllSigned policy. The Scope parameter specifies the value, Process. To view the execution policy settings, use the Get-ExecutionPolicy cmdlet with the List parameter.

Set the execution policy for the current PowerShell session:  Set-ExecutionPolicy -ExecutionPolicy AllSigned -Scope Process   Get-ExecutionPolicy -List   The Process scope only affects the current PowerShell session. The execution policy is saved in the environment variable $env:PSExecutionPolicyPreference and is deleted when the session is closed. The Set-ExecutionPolicy cmdlet uses the ExecutionPolicy parameter to specify the AllSigned policy. The Scope parameter specifies the value, Process. To view the execution policy settings, use the Get-ExecutionPolicy cmdlet with the List parameter.  <INSERT Set-ExecutionPolicy4.jpg HERE> <INSERT Set-ExecutionPolicy4a.jpg HERE>

Set the execution policy for the current PowerShell session:  Set-ExecutionPolicy -ExecutionPolicy AllSigned -Scope Process   Get-ExecutionPolicy -List   The Process scope only affects the current PowerShell session. The execution policy is saved in the environment variable $env:PSExecutionPolicyPreference and is deleted when the session is closed. The Set-ExecutionPolicy cmdlet uses the ExecutionPolicy parameter to specify the AllSigned policy. The Scope parameter specifies the value, Process. To view the execution policy settings, use the Get-ExecutionPolicy cmdlet with the List parameter.  <INSERT Set-ExecutionPolicy4.jpg HERE> <INSERT Set-ExecutionPolicy4a.jpg HERE>

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