function Invoke-WPFInstall {
    param (
        [Parameter(Mandatory=$false)]
        [PSObject[]]$PackagesToInstall = $($sync.selectedApps | Foreach-Object { $sync.configs.applicationsHashtable.$_ })
    )
    <#
    .SYNOPSIS
        Installs the selected programs using winget, if one or more of the selected programs are already installed on the system, winget will try and perform an upgrade if there's a newer version to install.
    #>

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

    if ($PackagesToInstall.Count -eq 0) {
        $WarningMsg = "Please select the program(s) to install or upgrade"
        [System.Windows.MessageBox]::Show($WarningMsg, $AppTitle, [System.Windows.MessageBoxButton]::OK, [System.Windows.MessageBoxImage]::Warning)
        return
    }

    $ManagerPreference = $sync["ManagerPreference"]

    Invoke-WPFRunspace -ParameterList @(("PackagesToInstall", $PackagesToInstall),("ManagerPreference", $ManagerPreference)) -DebugPreference $DebugPreference -ScriptBlock {
        param($PackagesToInstall, $ManagerPreference, $DebugPreference)

        $packagesSorted = Get-WinUtilSelectedPackages -PackageList $PackagesToInstall -Preference $ManagerPreference

        $packagesWinget = $packagesSorted[[PackageManagers]::Winget]
        $packagesChoco = $packagesSorted[[PackageManagers]::Choco]

        try {
            $sync.ProcessRunning = $true
            if($packagesWinget.Count -gt 0 -and $packagesWinget -ne "0") {
                Add-Type -AssemblyName System.DirectoryServices.AccountManagement
                Add-Type -assembly System.Windows.Forms
                $PrincipalContext = New-Object System.DirectoryServices.AccountManagement.PrincipalContext('Machine')
                $user = $env:USERNAME

                Get-LocalUser | Where-Object Enabled -eq $true | ForEach-Object {
                    try {
                        $myPasswordIsBlank = $PrincipalContext.ValidateCredentials($user, $null)
                    } catch {
                        $form = New-Object System.Windows.Forms.Form
                        $form.Text = "Set password for $user"
                        $form.Size = New-Object System.Drawing.Size(500, 200)

                        $label = New-Object System.Windows.Forms.Label
                        $label.Text = 'Maybe a program needs to be installed in "usermode" and you have no password set, you need to set it here. After putting a password into the text box a page asking for your password might open (not right after). If you keep the text box empty, nothing will happen.
                        REMEMBER THE PASSWORD FOR THE FUTURE. YOU WILL NEED FOR STUFF AND TO LOGIN IF AUTOLOGIN ISN`T SET'
                        $label.Size = New-Object System.Drawing.Size(480, 60)
                        $label.Location = New-Object System.Drawing.Point(10, 10)
                        $form.Controls.Add($label)

                        $passwordBox = New-Object System.Windows.Forms.TextBox
                        $passwordBox.Size = New-Object System.Drawing.Size(380, 20)
                        $passwordBox.UseSystemPasswordChar = $true
                        $passwordBox.Location = New-Object System.Drawing.Point(10, 125)
                        $form.Controls.Add($passwordBox)

                        $button = New-Object System.Windows.Forms.Button
                        $button.Text = 'Submit'
                        $button.Size = New-Object System.Drawing.Size(75, 23)
                        $button.Location = New-Object System.Drawing.Point(400, 125)
                        $button.Add_Click({
                            $password = $passwordBox.Text | ConvertTo-SecureString -AsPlainText -Force
                            if ($password) {
                                Set-LocalUser -Name $user -Password $password
                                $password.Close()
                                $Form.Close()
                            } else {
                                [System.Windows.Forms.MessageBox]::Show('No password entered!')
                            }
                        })
                        $form.Controls.Add($button)
                        $form.ShowDialog() | Out-Null
                    }
                }

                Show-WPFInstallAppBusy -text "Installing apps..."
                Install-WinUtilWinget
                Install-WinUtilProgramWinget -Action Install -Programs $packagesWinget
            }
            if($packagesChoco.Count -gt 0) {
                Install-WinUtilChoco
                Install-WinUtilProgramChoco -Action Install -Programs $packagesChoco
            }
            Hide-WPFInstallAppBusy
            Write-Host "==========================================="
            Write-Host "--      Installs have finished          ---"
            Write-Host "==========================================="
            $sync.form.Dispatcher.Invoke([action]{ Set-WinUtilTaskbaritem -state "None" -overlay "checkmark" })
        } catch {
            Write-Host "==========================================="
            Write-Host "Error: $_"
            Write-Host "==========================================="
            $sync.form.Dispatcher.Invoke([action]{ Set-WinUtilTaskbaritem -state "Error" -overlay "warning" })
        }
        $sync.ProcessRunning = $False
    }
}