Why are my PowerShell scripts not running

Question

I wrote a simple batch file as a PowerShell script  and I am getting errors when they run   It s in a scripts directory in my path  This is the error I get      Cannot be loaded because the execution of scripts is disabled on this system      Please see  get-help about-signing     I looked in the help  but it s less than helpful

User · Answer

You need to run Set-ExecutionPolicy   Set-ExecutionPolicy Restricted  lt -- Will not allow any powershell scripts to run   Only individual commands may be run   Set-ExecutionPolicy AllSigned  lt -- Will allow signed powershell scripts to run   Set-ExecutionPolicy RemoteSigned  lt -- Allows unsigned local script and signed remote powershell scripts to run   Set-ExecutionPolicy Unrestricted  lt -- Will allow unsigned powershell scripts to run   Warns before running downloaded scripts   Set-ExecutionPolicy Bypass  lt -- Nothing is blocked and there are no warnings or prompts

User · Answer

Set-ExecutionPolicy -ExecutionPolicy Bypass -Scope Process   The above command worked for me even when the following error happens   Access to the registry key  HKEY LOCAL MACHINE SOFTWARE Microsoft PowerShell 1 ShellIds Microsoft PowerShell  is denied

User · Answer

I was able to bypass this error by invoking PowerShell like this   powershell -executionpolicy bypass -File   MYSCRIPT ps1   That is  I added the -executionpolicy bypass to the way I invoked the script   This worked on Windows 7 Service Pack 1  I am new to PowerShell  so there could be caveats to doing that that I am not aware of    Edit 2017-06-26  I have continued to use this technique on other systems including Windows 10 and Windows 2012 R2 without issue   Here is what I am using now  This keeps me from accidentally running the script by clicking on it  When I run it in the scheduler I add one argument   scheduler  and that bypasses the prompt   This also pauses the window at the end so I can see the output of PowerShell   if NOT   1      scheduler        echo looks like you started the script by clicking on it      echo press space to continue or control C to exit     pause    C  cd  Scripts  powershell -executionpolicy bypass -File   rundps ps1  set psexitcode  errorlevel   if NOT   1      scheduler        echo Powershell finished   Press space to exit     pause    exit  b  psexitcode

User · Answer

It could be PowerShell s default security level  which  IIRC  will only run signed scripts   Try typing this   set-executionpolicy remotesigned   That will tell PowerShell to allow local  that is  on a local drive  unsigned scripts to run   Then try executing your script again

User · Answer

Also it s worth knowing that you may need to include    in front of the script name  For example      scriptname ps1

User · Answer

On Windows 10   Click change security property of myfile ps1 and change  allow access  by right click   properties on myfile ps1

User · Answer

Use   Set-ExecutionPolicy -ExecutionPolicy Bypass -Scope Process   Always use the above command to enable to executing PowerShell in the current session

User · Answer

import-module IISAdministration   function StartSite      param  sitename      try          Start-IISSite -Name  sitename          Write-Host  quot Site was started quot             catch          Write-Error  quot Error while staring the IISSite quot            function StopSite      param  sitename      try          Stop-IISSite -Name  sitename -confirm  False    Supress interaction inputs         Write-Host  quot Site was stopped quot             catch              Write-Error  quot Error while stopping the IISSite quot           function ReplaceSiteFiles      try          Get-ChildItem -Path A  APPS CreditApp -Recurse   Foreach-Object  Remove-Item -Recurse -Path    FullName    Remove file from AppPool Directory         Expand-Archive A  Staging LTA Installers CreditApp CreditApp zip -DestinationPath A  APPS    Extract files from zip         Write-Host  quot Site files replaced successfully  quot             catch  System SystemException           Write-Host  quot Error while replacing the site files quot           Write-Host                Start Here  site Get-IISSite -Name  quot Default Web Site quot    Write-Host  site  if  site length -eq 1         siteState    site state      Write-Host  quot The Site Exists with state    siteState  quot        switch   siteState                 started                         StopSite -sitename  site name                      ReplaceSiteFiles                      StartSite -sitename  site name                                                    stopped                         ReplaceSiteFiles                      StartSite -sitename  site name                              default    quot Deployment failed  Site state could not be determined  quot                 else      Write-Error  quot Invalid  Site does not exists quot          End Here

User · Answer

The command set-executionpolicy unrestricted will allow any script you create to run as the logged in user  Just be sure to set the executionpolicy setting back to signed using the set-executionpolicy signed command prior to logging out

User · Answer

We can bypass execution policy in a nice way  inside command prompt   type file ps1   powershell -command -  Or inside powershell  gc file ps1 powershell -c -

[powershell] Why are my PowerShell scripts not running?

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