Tuesday, May 24, 2016
POWERSHELL SCRIPT CANNOT BE LOADED BECAUSE RUNNING SCRIPTS IS DISABLED
WINDOWS 8 – POWERSHELL SCRIPT CANNOT BE LOADED BECAUSE RUNNING SCRIPTS IS DISABLED
I just stumbled upon an interesting Technet blog for Windows scripts here.
Attempting to run a Powershell script however generated the following error: [See bellow screenshot].
First let’s take a look at the Powershell execution policies – Restricted is the default policy and it prevents the running of scripts.
Our other alternatives are:
AllSigned – Scripts can run but must be signed by a trusted publisher
RemoteSigned – Scripts can run. Trusted publisher scripts must be signed. Scripts that you have written yourself do not need to be digitally signed.
Unrestricted – Unsigned scripts can be run and the user is warned before running downloaded scripts.
Bypass – nothing is blocked and there are no warnings or prompts.
For full disclosure on these policies review the Execution Policies link above.
Choose your alternative Execution Policy carefully – Restricted is the only policy that can save you from running malicious code (signed or unsigned) on your system!
Next we need to be aware of the Execution Policy scopes:
Process – only affects the current Powershell process.
CurrentUser – affects only the current user.
LocalMachine – affects all users on the computer.
So now let’s open up Powershell and review our current Execution Policy. From the Start screen just type Powershell and click on it in the search results.
Enter the following command to review the current policy:
As you can see my default policy is Undefined (which is the same thing as Restricted):
So now we can change the Execution Policy for the Scope to . If you wish to choose a different scope and/or policy then be my guest:
Set-ExecutionPolicy RemoteSigned -Scope CurrentUser
Note: You will see the following warning – press to continue: [See the bellow screenshot].
We can now check and see that the policy has been changed:
To finally run the Powershell script I had to run Powershell as an Administrator (right click and Run As Administrator).
Now enjoy your Powershell !
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