Autoruns is an app that shows you what apps are configured to run during your system bootup or login.

Free Alarm Clock is a free, feature rich and user-friendly alarm clock for the Windows platform.

HijackThis (also HiJackThis or HJT) is a free and open-source Trend Micro Announcement tool to detect malware and adware on Microsoft Windows.

WinPatrol alerts you to hijackings, malware attacks and critical changes made to your computer without your permission.