Since this question continues to attract responses that are either refuted by the question body or don't address the actual problem, please read this simple summary of what you need to know: This is not a "Why won't my default installation of PowerShell run scripts?" question. This is not a "Why won't my installation of PowerShell run scripts downloaded from the internet?" question. The question is why the RemoteSigned execution policy is preventing script execution when it shouldn't. RemoteSigned is the only execution policy I want to use. I am aware that other, less-restrictive policies are available. If those policies were acceptable substitutes I would have just used them instead and this question wouldn't exist. The execution policy is already set to RemoteSigned. Changing it from RemoteSigned to RemoteSigned is not a solution. The script file is created and stored locally. The script file is not blocked. The script file was never blocked (see previous point). The script file cannot be unblocked because there is nothing to unblock (see previous point). The script file is (attempted to be) executed by an administrator. Windows PowerShell is the only application involved. Not Windows PowerShell ISE nor Command Prompt nor any other tools or editors are relevant. The cause of the problem has already been identified (see accepted answer). After nearly 8 years, I think all other obvious explanations, whether applicable or not, have been posted, too. If you think otherwise then please read the question and existing answers in their entirety before adding yours.
I am using Windows PowerShell 2.0 on 64-bit Windows 7 Professional. I have a script on my Desktop
that causes the following error when I try to run it:
File C:\Users\UserName\Desktop\Script.ps1 cannot be loaded. The file C:\Users\UserName\Desktop\Script.ps1 is not digitally signed. The script will not execute on the system. Please see "get-help about_signing" for more details..
At line:1 char:54
+ C:\Users\UserName\Desktop\TestGetWindowsUpdateLog.ps1 <<<<
+ CategoryInfo : NotSpecified: (:) [], PSSecurityException
+ FullyQualifiedErrorId : RuntimeException
I am both a domain administrator and a local administrator, and if I run Get-ExecutionPolicy -List
, I can see that the Group Policy Object
I created to configure PowerShell is correctly applying the RemoteSigned
execution policy at the machine level:
Scope ExecutionPolicy
----- ---------------
MachinePolicy RemoteSigned
UserPolicy Undefined
Process Undefined
CurrentUser Undefined
LocalMachine Undefined
I created the script myself in Notepad
, and used the Sysinternals' streams
utility and the file Properties
dialog to confirm that the script is not being treated as having come from the internet. If I copy the script to a network share on a domain server, then it's allowed to execute. If I run Set-ExecutionPolicy -ExecutionPolicy Unrestricted -Scope LocalMachine
then the local script is still not allowed to execute, which makes sense since the execution policy at the MachinePolicy
scope will take precedence.
As documented by about_Execution_Policies
(current; at time of question), the RemoteSigned
policy means:
Scripts can run. Requires a digital signature from a trusted publisher on scripts and configuration files that are downloaded from the Internet (including e-mail and instant messaging programs). Does not require digital signatures on scripts that you have run and that you have written on the local computer (not downloaded from the Internet). Risks running unsigned scripts from sources other than the Internet and signed, but malicious, scripts.
My script is not signed, but since it is both created and executed locally, it should satisfy the third bullet point above. Therefore...
Why is my script not being allowed to run?
Why does PowerShell complain that my script "is not digitally signed" when that requirement should only apply to files from the Internet?
Why does PowerShell no longer care about the script not being signed when it's run from a network share?
Some things to check:
Can you change to unrestricted?
Set-ExecutionPolicy Unrestricted
Is the group policy set?
Computer Configuration\Administrative Templates\Windows Components\Windows PowerShell
User Configuration\Administrative Templates\Windows Components\Windows PowerShell
Also, how are you calling Script.ps1?
Does this allow it to run?
powershell.exe -executionpolicy bypass -file .\Script.ps1
Is the file being blocked? I had the same issue and was able to resolve it by right clicking the .PS1 file, Properties and choosing Unblock.
'Write-Host ''Hello, World!'';' > .\Test.ps1; .\Test.ps1;
I still get the error that the script is not digitally signed and it is not executed. If I open the Properties dialog for the newly-created file there is nothing to unblock.
ps1
file right click on it to bring up the context menu and choose Properties
, on the first tab near the bottom it will say the file is blocked and allow you to tick a checkbox to unblock it.
I have found out when running a PS1 file for a Mapped drive to Dropbox that I'm always getting this error. When opening up properties for the PS1 there is no "Unblock".
The only thing that work for me is
powershell.exe -executionpolicy bypass -file .\Script.ps1
Bypass
execution policy has already been suggested over five years ago and as recently as five months ago. Please read the question and existing answers before answering.
When you run a .ps1 PowerShell script you might get the message saying “.ps1 is not digitally signed. The script will not execute on the system.” To fix it you have to run the command below to run Set-ExecutionPolicy and change the Execution Policy setting.
Set-ExecutionPolicy -Scope Process -ExecutionPolicy Bypass
Bypass
execution policy. Using a different policy isn't helpful, anyways, and doesn't address the actual issue if RemoteSigned
really is what's needed. Finally, the error message you reference is not the same one as in the question.
I finally tracked this down to .NET Code Access Security. I have some internally-developed binary modules that are stored on and executed from a network share. To get .NET 2.0/PowerShell 2.0 to load them, I had added a URL rule to the Intranet
code group to trust that directory:
PS> & "$Env:SystemRoot\Microsoft.NET\Framework64\v2.0.50727\caspol.exe" -machine -listgroups
Microsoft (R) .NET Framework CasPol 2.0.50727.5420
Copyright (c) Microsoft Corporation. All rights reserved.
Security is ON
Execution checking is ON
Policy change prompt is ON
Level = Machine
Code Groups:
1. All code: Nothing
1.1. Zone - MyComputer: FullTrust
1.1.1. StrongName - ...: FullTrust
1.1.2. StrongName - ...: FullTrust
1.2. Zone - Intranet: LocalIntranet
1.2.1. All code: Same site Web
1.2.2. All code: Same directory FileIO - 'Read, PathDiscovery'
1.2.3. Url - file://Server/Share/Directory/WindowsPowerShell/Modules/*: FullTrust
1.3. Zone - Internet: Internet
1.3.1. All code: Same site Web
1.4. Zone - Untrusted: Nothing
1.5. Zone - Trusted: Internet
1.5.1. All code: Same site Web
Note that, depending on which versions of .NET are installed and whether it's 32- or 64-bit Windows, caspol.exe
can exist in the following locations, each with their own security configuration (security.config
):
$Env:SystemRoot\Microsoft.NET\Framework\v2.0.50727\
$Env:SystemRoot\Microsoft.NET\Framework64\v2.0.50727\
$Env:SystemRoot\Microsoft.NET\Framework\v4.0.30319\
$Env:SystemRoot\Microsoft.NET\Framework64\v4.0.30319\
After deleting group 1.2.3.
...
PS> & "$Env:SystemRoot\Microsoft.NET\Framework64\v2.0.50727\caspol.exe" -machine -remgroup 1.2.3.
Microsoft (R) .NET Framework CasPol 2.0.50727.9136
Copyright (c) Microsoft Corporation. All rights reserved.
The operation you are performing will alter security policy.
Are you sure you want to perform this operation? (yes/no)
yes
Removed code group from the Machine level.
Success
...I am left with the default CAS configuration and local scripts now work again. It's been a while since I've tinkered with CAS, and I'm not sure why my rule would seem to interfere with those granting FullTrust
to MyComputer
, but since CAS is deprecated as of .NET 4.0 (on which PowerShell 3.0 is based), I guess it's a moot point now.
caspol.exe
, but after running caspol.exe -machine -addgroup 1.2 -url file://Server/Share/Directory/WindowsPowerShell/Modules/* FullTrust
I ended up with the same 1.2.3.
rule seen in this answer. I was using a file://
URL to reference a directory on an SMB share, though I see in the documentation one of the -addgroup
examples uses a UNC path.
If the file is copied from a network location, that is, another computer, Windows might have blocked that file. Right click on the file and click on the unblock button and see if it works.
'Write-Host ''Hello, World!'';' > .\Test.ps1; .\Test.ps1;
I still got the error that the script was not digitally signed and it was not executed. If I opened the Properties dialog for the newly-created file there was nothing to unblock.
this code line was working in Ubuntu with virtualbox and with Win 10 as a virtual os , inside of the powershell
Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
If it is not working I recomand to read this resources below :
Set-ExecutionPolicy
Module: Microsoft.PowerShell.Security Sets the PowerShell execution policies for Windows computers.
Get-ExecutionPolicy -List
RemoteSigned
is not a solution because that's what it already is! There's already plenty of other answers suggesting this same non-solution.
What works for me was right-click on the .ps1 file and then properties. Click the "UNBLOCK" button. Works great fir me after spending hours trying to change the policies.
Select your terminal Command prompt instead of Power shell. That should work.
This is an IDE issue. Change the setting in the PowerShell GUI. Go to the Tools tab and select Options, and then Debugging options. Then check the box Turn off requirement for scripts to be signed. Done.
Please make a backup for the script.bs1 file
What works for me was deleting the script.bs1 file and running the execution command.
Get-ExecutionPolicy -List
?
This occurs due to Powershell execution policy is set to restricted by default which prevents execution PowerShell scripts and protects from running malicious scripts.
You can change execution scope for specific scope by running the following command
Set-ExecutionPolicy -Scope Process
RemoteSigned
.
I was having the same issue and fixed it by changing the default program to open .ps1 files to PowerShell. It was set to Notepad.
.ps1
file it'd open in Notepad instead of executing the script in PowerShell?
Try running the Powershell GUI as Administrator
I am both a domain administrator and a local administrator
. Running PowerShell elevated would not make a difference as the script was allowed to run unelevated when stored on a network share.
Run below 2 commands in PowerShell window
Set-ExecutionPolicy unrestricted Unblock-File -Path D:\PowerShell\Script.ps1
Success story sharing
Scope
parameter isLocalMachine
, soSet-ExecutionPolicy Unrestricted
is effectively the same as theSet-ExecutionPolicy -ExecutionPolicy Unrestricted -Scope LocalMachine
I'd already tried. Yes, theTurn on Script Execution
policy is enabled forComputer Configuration
.PowerShell
opens toC:\Users\UserName
, so I just run.\Desktop\Script.ps1
at the prompt. Using the absolute path yields the same error, as does calling the script viapowershell.exe
.gpupdate /force
? (Relaunch PowerShell.exe after)Unrestricted
at theLocalMachine
scope, but when I started writing scripts I wanted to run from other computers I setLocalMachine
back toUndefined
and added the current Group Policy to setRemoteSigned
at theMachinePolicy
scope. This is just a one-off test script and it's really no big deal to run it from the network instead, I just want to know why it doesn't work locally. After all, a locally-created script should be allowed to execute underRemoteSigned
, right? I just thought there must be something I'm missing or not understanding.RemoteSigned
savingWrite-Host hi
with notepad to your desktop should run fine. You're configuration looks ok too... Something seems broken to me... which is why I suggested removing the group policy to see if it helps.-executionpolicy bypass
to temporarily get past the remotesigned issue... and that let us uncover & debug other issues (unrelated, that required us to upgrade PowerShell).