In my Windows 98SE Task Scheduler there are two tasks that I don't recognize. One is WINDOWS CRITICAL UPDATE NOTIFICATION (pointing to C:\Windows\System\walign.exe) and the other is TUNE-UP APPLICATION START (pointing to C:\Windows\System\wucrtupd.exe). I assume these are both Microsoft programs but I'm not sure whether I need them. Do one or both of them allow Microsoft access to my computer? Do I need the keep them where they are?