You want to create a script that checks if a registry key HKCU:\Software\MyApp exists, and if not, creates it. Which snippet correctly does this?

hard📝 Application Q8 of 15

PowerShell - System Administration

You want to create a script that checks if a registry key HKCU:\Software\MyApp exists, and if not, creates it. Which snippet correctly does this?

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

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

CNew-Item -Path 'HKCU:\Software\MyApp' -Force

Dif (Test-Path 'HKCU:\Software\MyApp') { Remove-Item -Path 'HKCU:\Software\MyApp' }

Step-by-Step Solution

Solution:

Step 1: Check key existence
Test-Path returns true if the key exists; -not negates it.
Step 2: Create key if missing
New-Item creates 'MyApp' under 'HKCU:\Software' only if missing.
Final Answer:
if (-not (Test-Path 'HKCU:\Software\MyApp')) { New-Item -Path 'HKCU:\Software' -Name 'MyApp' } -> Option B
Quick Check:
Use Test-Path and New-Item to conditionally create keys [OK]

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

Common Mistakes:

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