You want to create a new registry key HKCU:\Software\MyApp\Settings only if it does not exist. Which script snippet correctly does this?

hard📝 Application Q15 of 15

PowerShell - System Administration

You want to create a new registry key HKCU:\Software\MyApp\Settings only if it does not exist. Which script snippet correctly does this?

Aif (-not (Test-Path 'HKCU:\Software\MyApp\Settings')) { New-Item -Path 'HKCU:\Software\MyApp' -Name 'Settings' }

BNew-Item -Path 'HKCU:\Software\MyApp\Settings' -Force

CSet-ItemProperty -Path 'HKCU:\Software\MyApp\Settings' -Name 'Exists' -Value $true

DRemove-Item -Path 'HKCU:\Software\MyApp\Settings' -ErrorAction SilentlyContinue

Step-by-Step Solution

Solution:

Step 1: Check if key exists using Test-Path
Test-Path returns true if the registry key exists, so -not negates it to check non-existence.
Step 2: Create key only if missing
New-Item creates the 'Settings' key under 'MyApp' only if it does not exist, avoiding errors.
Final Answer:
if (-not (Test-Path 'HKCU:\Software\MyApp\Settings')) { New-Item -Path 'HKCU:\Software\MyApp' -Name 'Settings' } -> Option A
Quick Check:
Use Test-Path before New-Item to avoid duplicates [OK]

Quick Trick: Use Test-Path to check key before creating with New-Item [OK]

Common Mistakes:

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