Close all apps that are currently open and shut down your Mac using the Automator script. Because I prefer to switch to a Mac and start from scratch 😉

shutdown.app

on run {input, parameters}
    tell application "System Events"
        set appList to name of every application process where background only is false
    end tell

    repeat with appName in appList
        try
            do shell script "killall '" & appName & "'"
        end try
    end repeat

    delay 1

    do shell script "shutdown -h now" with administrator privileges
    return input
end run