function Invoke-WPFtweaksbutton {
  <#

    .SYNOPSIS
        Invokes the functions associated with each group of checkboxes

  #>

  if($sync.ProcessRunning) {
    $msg = "[Invoke-WPFtweaksbutton] Install process is currently running."
    [System.Windows.MessageBox]::Show($msg, "Winutil", [System.Windows.MessageBoxButton]::OK, [System.Windows.MessageBoxImage]::Warning)
    return
  }

  $Tweaks = $sync.selectedTweaks
  $dnsProvider = $sync["WPFchangedns"].text
  if (-not ($dnsProvider)) {
    $dnsProvider = "Default"
  }
  $restorePointTweak = "WPFTweaksRestorePoint"
  $restorePointSelected = $Tweaks -contains $restorePointTweak
  $tweaksToRun = @($Tweaks | Where-Object { $_ -ne $restorePointTweak })
  $totalSteps = [Math]::Max($Tweaks.Count, 1)
  $completedSteps = 0
  Write-WinUtilLog -Component "Tweaks" -Message "Tweaks requested: $(@($Tweaks).Count) selected tweak(s), DNS provider: $dnsProvider"

  if ($tweaks.count -eq 0 -and $dnsProvider -eq "Default") {
    $msg = "Please check the tweaks you wish to perform."
    [System.Windows.MessageBox]::Show($msg, "Winutil", [System.Windows.MessageBoxButton]::OK, [System.Windows.MessageBoxImage]::Warning)
    return
  }

  if ($restorePointSelected) {
    $sync.ProcessRunning = $true

    if ($Tweaks.Count -eq 1) {
        Invoke-WPFUIThread -ScriptBlock { Set-WinUtilTaskbaritem -state "Indeterminate" -value 0.01 -overlay "logo" }
    } else {
        Invoke-WPFUIThread -ScriptBlock { Set-WinUtilTaskbaritem -state "Normal" -value 0.01 -overlay "logo" }
    }

    Set-WinUtilTweaksProgressIndicator -Visible $true -Label "Creating restore point" -Percent 0
    Write-WinUtilLog -Component "Tweaks" -Message "Creating restore point before applying selected tweaks."
    Invoke-WinUtilTweaks $restorePointTweak
    $completedSteps = 1

    if ($tweaksToRun.Count -eq 0 -and $dnsProvider -eq "Default") {
      Set-WinUtilTweaksProgressIndicator -Visible $true -Label "Tweaks finished" -Percent 100
      $sync.ProcessRunning = $false
      Invoke-WPFUIThread -ScriptBlock { Set-WinUtilTaskbaritem -state "None" -overlay "checkmark" }
      Write-Host "================================="
      Write-Host "--     Tweaks are Finished    ---"
      Write-Host "================================="
      Write-WinUtilLog -Component "Tweaks" -Message "Tweaks workflow completed after restore point."
      return
    }
  }

  # The leading "," in the ParameterList is necessary because we only provide one argument and powershell cannot be convinced that we want a nested loop with only one argument otherwise
  Invoke-WPFRunspace -ParameterList @(("tweaks", $tweaksToRun), ("dnsProvider", $dnsProvider), ("completedSteps", $completedSteps), ("totalSteps", $totalSteps)) -ScriptBlock {
    param($tweaks, $dnsProvider, $completedSteps, $totalSteps)

    $sync.ProcessRunning = $true

    if ($completedSteps -eq 0) {
      if ($Tweaks.count -eq 1) {
        Invoke-WPFUIThread -ScriptBlock { Set-WinUtilTaskbaritem -state "Indeterminate" -value 0.01 -overlay "logo" }
      } else {
        Invoke-WPFUIThread -ScriptBlock{ Set-WinUtilTaskbaritem -state "Normal" -value 0.01 -overlay "logo" }
      }
    }

    if ($dnsProvider -ne "Default") {
      Set-WinUtilDNS -DNSProvider $dnsProvider
    }

    for ($i = 0; $i -lt $tweaks.Count; $i++) {
      Set-WinUtilTweaksProgressIndicator -Visible $true -Label "Applying $($tweaks[$i]) ($($completedSteps + 1)/$totalSteps)" -Percent ($completedSteps / $totalSteps * 100)
      Invoke-WinUtilTweaks $tweaks[$i]
      $completedSteps++
      $progress = $completedSteps / $totalSteps
      Invoke-WPFUIThread -ScriptBlock { Set-WinUtilTaskbaritem -value $progress }
    }
    Set-WinUtilTweaksProgressIndicator -Visible $true -Label "Tweaks finished" -Percent 100
    $sync.ProcessRunning = $false
    Invoke-WPFUIThread -ScriptBlock { Set-WinUtilTaskbaritem -state "None" -overlay "checkmark" }
    Write-Host "================================="
    Write-Host "--     Tweaks are Finished    ---"
    Write-Host "================================="
    Write-WinUtilLog -Component "Tweaks" -Message "Tweaks workflow completed."
  }
}
