wsus-update

wsus-update.ps1

Function WSUSUpdate {
	$Criteria = "IsInstalled=0 and Type='Software'"
	$Searcher = New-Object -ComObject Microsoft.Update.Searcher
	try {
		$SearchResult = $Searcher.Search($Criteria).Updates
		if ($SearchResult.Count -eq 0) {
			Write-Output "There are no applicable updates."
			exit
		} 
		else {
			$Session = New-Object -ComObject Microsoft.Update.Session
			$Downloader = $Session.CreateUpdateDownloader()
			$Downloader.Updates = $SearchResult
			$Downloader.Download()
			$Installer = New-Object -ComObject Microsoft.Update.Installer
			$Installer.Updates = $SearchResult
			$Result = $Installer.Install()
		}
	}
	catch {
		Write-Output "There are no applicable updates."
	}
}

WSUSUpdate
If ($Result.rebootRequired) { Restart-Computer }

Hi, I am able to run this script in windows server 2008 machine which says that no latest updates available, but when i checked, server shows that
Windows malicious software tool x64 - February 2015 -
was not installed. This update was not detected by this script.

There was other script, http://community.spiceworks.com/scripts/show/1075-download-and-install-updates-with-or-without-reboot which indeed shows the update but getting error while installation (exception calling install with 0 args). I am not very familiar with Powsershell scripting, and so not able to get what the issue is. Can you please help.

Thank you for this script! I am just starting to learn power shell for my role as a Junior DBA. I ran in to a catch and was hoping you could tell me if my problem is user error or not?

I run the command as listed, however the auto restart does not take place. I am running the script on the machine I am patching, if that matters.

I was also wondering if you found a way to run this against multiple machines at once? Of instance I have to patch 8 DB servers this evening, is it possible to run this on those machines from my laptop (or another server in the domain)?

Thank you so much for this, you saved me lots of time figuring this all out.

I do have a question though, is there a way to call this on loop after reboots? I'm trying to figure out the easiest way to implement that.
Example:
Run script that gets updates, installs, and restarts if needed. The question is when a server restarts there can sometimes be more updates. Could someone just set this script to run on reboot so it would keep rebooting until there were no more updates?

sorry, the script is provided as-is. feel free to use it as a building block in your own scripts!

Hey that's a cool script. However I can't get it working, all I get is "HResult: 0 and ResultCode: 2", no updates being installed. Any idea why it doesn't seem to work?

Hey that's a cool script. However I can't get it working, all I get is "HResult: 0 and ResultCode: 2", no updates being installed. Any idea why it doesn't seem to work?

as above, provided aas-is. i am no longer a system administrator and do not deal with wsus anymore.