PowerShell for Hyper-V: Avoid Error Running PowerShell Scripts

This post is part of the series on PowerShell for Hyper-V.

If you try to run a PowerShell script, you will receive an error:

File C:TempResume HVVMs.ps1 cannot be loaded because running scripts is disabled on this system. For more information, see about_Execution_Policies at 
https:/go.microsoft.com/fwlink/?LinkID=135170.
    + CategoryInfo          : SecurityError: (:) [], ParentContainsErrorRecordException
    + FullyQualifiedErrorId : UnauthorizedAccess

This is deliberate on Microsoft’s part to make sure a script is not inadvertently run. You can enable running of scripts, but this is very risky.

However, there is a command you can run which will, for only the script being run, allow the script to run (replace the highlighted section with your script file):

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -ExecutionPolicy Bypass -File {your script}

The relevant section is

-ExecutionPolicy Bypass

which tells PowerShell that it may bypass the execution policy restriction.