Manually
To find the uninstall commands, I first look in the registry keys on the following paths:
HKLM\SOFTWARE\Classes\Installer\Products HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall HKLM\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall
You can find a key called « UninstallString » in this case, you have the command, but you will be missing the argument to make the uninstallation silent.
You can also find a GUID in a key, in this case, try the command msiexec /x {theGUID}.
Script
Here is an example of a script to perform the uninstallations
function Uninstall {
param (
[Parameter(Mandatory=$true)] [string]$AppName,
[Parameter(Mandatory=$false)] [string]$Arg = "/S"
)
# Define uninstall keys
$uninstallKeys = @(
'HKCU:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*',
'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*',
'HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*'
)
# Define the log file path
$logFilePath = "C:\Windows\temp\uninstall.log"
# Fetch all keys
$keys = Get-ChildItem -Path $uninstallKeys -ErrorAction SilentlyContinue
# Filter and uninstall the specified app
$keys | Where-Object {
$_.GetValue('DisplayName') -like "*$AppName*"
} | ForEach-Object {
$uninstallString = $_.GetValue('UninstallString')
$uninstallApps = $_.GetValue('DisplayName')
if ($uninstallString -like "msiexec*" -and $uninstallString -like '*{*') {
$uninstallString = "{$($uninstallString.split('{')[1])"
$logEntry = "$uninstallApps => msiexec.exe /X $uninstallString REBOOT=ReallySuppress /qn"
Write-Host $logEntry
Add-Content -Path $logFilePath -Value $logEntry
Start-Process -FilePath "c:\windows\system32\msiexec.exe" -ArgumentList "/X $uninstallString REBOOT=ReallySuppress /qn" -Wait
}
if (($uninstallString -like "*.exe*") -and ($uninstallString -notlike "*msiexec*")) {
$logEntry = "$uninstallApps => $uninstallString $Arg"
Write-Host $logEntry
Add-Content -Path $logFilePath -Value $logEntry
Start-Process -FilePath "$uninstallString" -ArgumentList "$Arg" -Wait
}
}
}
Uninstall -AppName "Firefox" -Arg "-ms"
Uninstall -AppName "Teamviewer"
Uninstall -AppName "AnyDesk"
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