Powershell enable Software Update Agent on the Client

If the Software Update Agent Component can not activate, you can use this script to activate it:

# Define the namespace and class
$namespace = "root\ccm\policy\machine\requestedconfig"
$class = "CCM_SoftwareUpdatesClientConfig"

# Create a new instance of the WMI class
$wmiClass = [wmiclass]"\\.\$namespace:$class"
$wmiObject = $wmiClass.CreateInstance()

# Set the properties
$wmiObject.ComponentName = "SmsSoftwareUpdate"
$wmiObject.Enabled = $false
$wmiObject.PolicySource = "local"
$wmiObject.PolicyVersion = "1.0"
$wmiObject.SiteSettingsKey = "1"

# Save the new object
$wmiObject.Put()