Use power shell to get installed patches from windows box

Today, I will take you through some of the PowerShell one-liners which will help you in querying patches installed in your machine.

List All installed patches:

PS C:\>gwmi Win32_QuickFixEngineering | select Description, Hotfixid

List all patches that are installed in last 30 days:

PS C:\> gwmi Win32_QuickFixEngineering | ? {$_.InstalledOn} | where { (Get-date($_.Installedon)) -gt (get-date).adddays(-30) }

List all patches installed on specific date:

PS C:\> gwmi Win32_QuickFixEngineering | ? {$_.InstalledOn} | where { (Get-date($_.Installedon)) -gt (get-date 10/31/2009) }

Query for a specific hotfix by providing hotfix ID(KB12345 format):

PS C:\> gwmi Win32_QuickFixEngineering | ? {$_.HotfixID -match " KB975025" }

List all hotfixes installed by administrator account:

PS C:\> gwmi Win32_QuickFixEngineering | ? {$_.InstalledBy -match "administrator" }

You can adopt the above queries and run against remote machine by passing the computer name shown like below.

PS C:\> gwmi Win32_QuickFixEngineering -Computer remotecomp | ? {$_.InstalledOn} | where { (Get-date($_.Installedon)) -gt (get-date).adddays(-30) }

Happy Learning,

Sitaram Pamarthi