# List all possible TeamViewer installation paths here.
$UninstallerPaths = @(
    "${Env:ProgramFiles}\TeamViewer\Version6\uninstall.exe",
    "${Env:ProgramFiles(x86)}\TeamViewer\Version6\uninstall.exe",
    "${Env:ProgramFiles}\TeamViewer\Version7\uninstall.exe",
    "${Env:ProgramFiles(x86)}\TeamViewer\Version7\uninstall.exe",
    "${Env:ProgramFiles}\TeamViewer\Version8\uninstall.exe",
    "${Env:ProgramFiles(x86)}\TeamViewer\Version8\uninstall.exe",
    "${Env:ProgramFiles}\TeamViewer\Version9\uninstall.exe",
    "${Env:ProgramFiles(x86)}\TeamViewer\Version9\uninstall.exe",
    "${Env:ProgramFiles}\TeamViewer\uninstall.exe",
    "${Env:ProgramFiles(x86)}\TeamViewer\uninstall.exe"
    "${Env:ProgramFiles}\Take Control Viewer\uninstall.exe",
    "${Env:ProgramFiles(x86)}\Take Control Viewer\uninstall.exe"
)

# List all known registry keys
$RegKeys = @(
    "HKLM\SOFTWARE\TeamViewer",
    "HKLM\SOFTWARE\WOW6432Node\TeamViewer",
    "HKLM\SOFTWARE\WOW6432Node\TVInstallTemp",
    "HKCU\SOFTWARE\TeamViewer",
    "HKCU\SOFTWARE\Wow6432Node\TeamViewer"
)

# Find the most likely path to the TeamViewer uninstaller
If ( Test-Path "${Env:ProgramFiles(x86)}" )
{
    $INSTALLDIR = $(Get-ItemProperty -Path "HKLM:\SOFTWARE\WOW6432Node\TeamViewer").InstallationDirectory
}

Else
{
    $INSTALLDIR = $(Get-ItemProperty -Path "HKLM:\SOFTWARE\TeamViewer").InstallationDirectory
}

# Kill all running instances of TeamViewer
Get-Process | Where { $_.Name -like "*TeamViewer*" } | Stop-Process -Force

If ( Test-Path "${INSTALLDIR}\uninstall.exe" )
{ Start-Process "${INSTALLDIR}\uninstall.exe" -ArgumentList "/S" -Wait }

# Loop through each path in $UninstallerPaths and test if each one exists.
# If a path exists, silently run the uninstaller and then delete the directory.
Foreach ($uninstaller in $UninstallerPaths)
{
    If ( Test-Path "${uninstaller}" )
    {
        # Run the uninstaller
        Start-Process "${uninstaller}" -ArgumentList "/S" -Wait

        # Remove the directory
        $dirname = $(Get-Item $uninstaller).Directory.FullName
        Remove-Item "${dirname}" -Recurse -ErrorAction SilentlyContinue
    }
}

# Remove each registry key in $RegKeys
Foreach ($key in $RegKeys)
{
    If ( Test-Path $key ) { Remove-Item $key -Recurse }
}

# Remove the TeamViewer service
Start-Process "sc.exe" -ArgumentList "delete TeamViewer" -Wait
Start-Process "sc.exe" -ArgumentList "delete TeamViewer_Service" -Wait