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List installed Software

tags: PowerShell categories: System-Engineering

Table of Contents

Get Software from WMI

Loop through the Win32_Product class and get all installed software.

$collection = Get-CimInstance -Class Win32_Product -ErrorAction SilentlyContinue | Where-Object {-not([string]::IsNullOrEmpty($_.Name))}

$resultset = foreach($item in $collection){
   # Add names and values to an PSCustomObject
   [PSCustomObject]@{
      InstallDate = $item.InstallDate
      Vendor      = $item.Vendor
      Name        = $item.Name
      PackageName = $item.PackageName
      Description = $item.Description
      Version     = $item.Version
   }
}
$resultset | Sort-Object Name | Format-Table -AutoSize

Output:

InstallDate Vendor                     Name                        Version
----------- ------                     ----                        -------
20180822    Adobe Systems Incorporated Adobe Acrobat Reader DC MUI 18.009.20044
20180918    Microsoft Corporation      PowerShell 6-x64            6.1.0.0

Get Software from Uninstallkey

Formats a hashtable to a PSCustomObject.

# 64-bit applications that run on a 64-bit version of Windows
$collection = Get-ChildItem 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall' `
| Get-ItemProperty | Where-Object {-not([string]::IsNullOrEmpty($_.DisplayName))} `
| Select-Object DisplayName,DisplayVersion,UninstallString

# 32-bit applications that run on a 64-bit version of Windows
$collection += Get-ChildItem 'HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall' `
| Get-ItemProperty | Where-Object {-not([string]::IsNullOrEmpty($_.DisplayName))} `
| Select-Object DisplayName,DisplayVersion,UninstallString

$resultset = foreach($item in $collection){
    [PSCustomObject] @{
        Name            = $item.DisplayName
        Version         = $item.DisplayVersion
        UninstallString = $item.UninstallString
    }
}
$resultset | Sort-Object Name | Format-Table -AutoSize

Output:

Name                                Version         UninstallString
----                                -------         ---------------
Adobe Acrobat Reader DC - Deutsch   19.010.20091    MsiExec.exe /I{AC76BA86-7AD7-1031-7B44-AC0F074E4100}
PowerShell 6-x64                    6.1.2.0         MsiExec.exe /X{65276649-728D-4AB9-AAEC-6EFF860B11EC}

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