Registry operations in PowerShell - Mini Project: Build & Apply

Registry operations

📖 Scenario: You are managing Windows system settings using the registry. You want to automate reading and updating registry keys to configure system behavior.

🎯 Goal: Build a PowerShell script that reads a registry key value, sets a new value, and then verifies the change by reading the key again.

📋 What You'll Learn

Use PowerShell to read a registry key value

Create a variable to hold the registry path

Set a new value for a registry key

Read and display the updated registry key value

💡 Why This Matters

🌍 Real World

Automating registry changes helps system administrators configure multiple computers quickly and consistently.

💼 Career

Knowing how to script registry operations is useful for IT support, system administration, and automation roles.

1

Create a variable for the registry path

Create a variable called $regPath and set it to the string 'HKCU:\Software\MyApp'.

PowerShell

$regPath = ''
# Your code here

Need a hint?

Use single quotes around the registry path string.

2

Create a variable for the registry value name

Create a variable called $valueName and set it to the string 'Setting1'.

PowerShell

$regPath = 'HKCU:\Software\MyApp'
$valueName = ''
# Your code here

Need a hint?

Use single quotes around the value name string.

3

Read the current registry value

Use Get-ItemProperty with $regPath to read the registry key, and store the value of $valueName in a variable called $currentValue.

PowerShell

$regPath = 'HKCU:\Software\MyApp'
$valueName = 'Setting1'
$currentValue = $null
# Your code here

Need a hint?

Use parentheses to get the property object, then access the property by .$valueName.

4

Set a new registry value and display it

Use Set-ItemProperty with $regPath, $valueName, and the new value 'Enabled'. Then read the updated value into $updatedValue and print it using Write-Output.

PowerShell

$regPath = 'HKCU:\Software\MyApp'
$valueName = 'Setting1'
$currentValue = (Get-ItemProperty -Path $regPath).$valueName
# Your code here

Need a hint?

Use Set-ItemProperty to update the value, then read it again and print it.