PoshTip #2 – Find Hotfixes Installed

PoshTip #2  – Find Hotfixes Installed

You can get the hotfixes that have been applied to your computer or on a remote computer.

First method

The Win32_QuickFixEngineering WMI class represents updates that have been applied to the current operating system.

Get-WmiObject -ClassName Win32_QuickFixEngineering | sort Description

You can set the computer argument to query a remote computer. Below I get the updates installed in the last 30 days :

gwmi Win32_QuickFixEngineering -ComputerName SRV01 | ? {$_.InstalledOn} | Where { (Get-date($_.Installedon)) -gt (get-date).adddays(-30) }

Second method

You can also get the updates installed on your system easily with the “Get-Hotfix” cmdlet :

Get-Hotfix

Third method

You can use the IUpdateSearcher::Search method to determine the number of installed updates:

$Session = New-Object -ComObject Microsoft.Update.Session
$Searcher = $Session.CreateUpdateSearcher()
$results=$Searcher.Search('IsInstalled=1')
$results.Updates | Select-Object IsInstalled, LastDeploymentChangeTime, Title

Last method

And finally, you just have to query the registry database. Must be running with Administrator privileges.

Get-ChildItem HKLM:\software\Microsoft\Updates -recurse
About Nicolas 282 Articles
I work as an IT Production Manager, based in Paris (France) with a primary focus on Microsoft technologies. I have 10 years experience in administering Windows Servers. . I am a Microsoft MVP for Cloud & Datacenter Management. I also received the PowerShell Hero 2016 award by PowerShell.0rg. And finally, I am "MCSE: Cloud Platform and Infrastructure", "MCSA: Windows Servers", "Administering & Deploying SCCM", and CheckPoint CCSA certified.

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