PowerShell - Setting $ErrorActionPreference for the entire script
Since you're running V3, you also have the option of using $PSDefaultParameterValues:
$PSDefaultParameterValues += @{'New-RegKey:ErrorAction' = 'Stop'}Normally that will change it in the global scope. If you want to isolate it to just the local or script scope, you can initialize a new one in the local scope first:
$PSDefaultParameterValues = @{}$PSDefaultParameterValues += @{'New-RegKey:ErrorAction' = 'Stop'}If you want to inherit what's already in the parent scope and then add to it for the local scope:
$PSDefaultParameterValues = $PSDefaultParameterValues.clone() $PSDefaultParameterValues += @{'New-RegKey:ErrorAction' = 'Stop'}To set the default ErrorAction for all cmdlets, not just New-RegKey, specify '*:ErrorAction' instead of 'New-RegKey:ErrorAction' in the code above.