Add sync-WsusClient to force computers to check in with update server

Author: rpstester

TOOL-Sync-Wsus-Client/Sync-WsusClient.ps1

@@ -0,0 +1,60 @@
+function sync-WsusClient {
+    <#
+.SYNOPSIS
+    Function to force the given computer(s) to check for updates and check in with the WSUS server
+.DESCRIPTION
+    Connects to computer list over WinRM (PsSession) and forces it to check for updates and report to its WSUS server
+    Default if no computers listed is to use localhost
+    Meant to run against many computers and get quick results
+.PARAMETER ComputerName
+    A string list of computer names against which to run this sync command
+.PARAMETER Credential
+    A "pscredential" that will be used to connect to the remote computer(s)
+.EXAMPLE
+    Sync-WsusClient
+    "localhost - Done!"
+.EXAMPLE
+    Sync-WsusClient server1, server2, server3, server4
+    "server2 - Done!"
+    "server1 - Done!"
+    "server4 - Done!"
+    "server3 - Done!"
+.EXAMPLE
+    Sync-WsusClient server1, server2 -Credential admin
+    (enter your credential and then...)
+    "server2 - Done!"
+    "server1 - Done!"
+.NOTES
+    Here's one place where it came from: http://pleasework.robbievance.net/howto-force-really-wsus-clients-to-check-in-on-demand/
+    Roger P Seekell, (2019), 9-13-2019
+#>
+Param(
+    [Parameter(ValueFromPipeline=$true,
+        ValueFromPipelineByPropertyName=$true)]
+        [string[]]$ComputerName = 'localhost',
+    [pscredential]$Credential = $null
+)
+process {
+    #this script block will run on each computer
+    $scriptBlock = {
+        try {
+        $updateSession = New-Object -com "Microsoft.Update.Session"
+        $null = $updateSession.CreateUpdateSearcher().Search($criteria).UPdates #I don't want to see them
+        wuauclt /reportnow
+        "$env:computername - Done!"
+        }
+        catch {
+            Write-Error "Sync unsuccessful on $env:computername : $_"
+        }
+    }#end script block
+
+    $splat = @{"ComputerName" = $ComputerName; "ScriptBlock" = $scriptBlock}
+
+    if ($Credential -ne $null) {
+        $splat += @{"Credential" = $Credential}
+    }
+
+    Invoke-Command @splat #run with the two or three parameters above
+}#end process
+
+}#end function