<#
 #   It is recommended to test the script on a local machine for its purpose and effects. 
 #   ManageEngine Endpoint Central will not be responsible for any 
 #   damage/loss to the data/setup based on the behavior of the script.

 #   Description: Script is designed To Append the existing regsitry value data

 #   Configuration Type - COMPUTER / USER (Based on the regsitry Hive)

 #   Arguments: Hardcoded inside the script (Reg Path,Value Name & Value Data)

 #>

#Hardcode the Arguments here

$path = "HKLM:\SOFTWARE\Test"
$Name = "Test"
$valueUpdate = "2106"

# Check if the registry path exists
if (-not (Test-Path -Path $path)) {
    Write-Host "The registry path does not exist: $path"
} else {
    try {
        # Get the existing value
        $existing = Get-ItemProperty -Path $path -Name $Name -ErrorAction Stop
        $updatedValue = $existing.$Name + $valueUpdate

        # Update the registry value
        Set-ItemProperty -Path $path -Name $Name -Value $updatedValue
        Write-Host "Value appended successfully: $updatedValue"
    } catch {
        Write-Host "Failed to read or update the registry value. Error: $_"
    }
}