56 lines
1.7 KiB
PowerShell
56 lines
1.7 KiB
PowerShell
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<#
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.SYNOPSIS
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Lists installed software and their GUIDs/Registry Keys.
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.DESCRIPTION
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This script scans the Windows Registry (HKLM and WOW6432Node) for installed applications
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and outputs their Display Name and Registry Key Name (which is often the MSI GUID).
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Useful for finding the GUID of software to target for uninstallation.
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.PARAMETER Filter
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Optional string to filter the results by Display Name.
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.EXAMPLE
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.\GetGUIDApp.ps1
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Lists all installed software in a grid view.
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.EXAMPLE
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.\GetGUIDApp.ps1 -Filter "Printer"
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Lists only software with "Printer" in the name.
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#>
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param (
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[string]$Filter = ""
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)
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$paths = @(
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"HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*",
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"HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*"
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)
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Write-Host "Scanning Registry for Installed Software..." -ForegroundColor Cyan
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$results = @()
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foreach ($path in $paths) {
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$items = Get-ItemProperty $path -ErrorAction SilentlyContinue
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foreach ($item in $items) {
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if (-not [string]::IsNullOrWhiteSpace($item.DisplayName)) {
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$results += [PSCustomObject]@{
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DisplayName = $item.DisplayName
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RegistryKeyName = $item.PSChildName # This is the GUID for MSI apps
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UninstallString = $item.UninstallString
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}
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}
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}
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}
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if (-not [string]::IsNullOrWhiteSpace($Filter)) {
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Write-Host "Filtering for: '$Filter'" -ForegroundColor Yellow
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$results = $results | Where-Object { $_.DisplayName -match "(?i)$Filter" }
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}
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$results | Sort-Object DisplayName | Out-GridView -Title "Installed Software (Select to see details)"
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Write-Host "Done. Check the Grid View window." -ForegroundColor Green
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