Disk Defrag Screen Saver is a handy tool that allows users to defragment their disks in Screen Saver mode. Like other Windows screensavers, defrag screensaver starts automatically when the system has been idle for a while.
Sidebar Gadget gives you detailed information about the most resource-heavy processes running on your computer. It displays how much CPU and RAM each process (e.g. lsass.exe) uses and lets you view a comprehensive process description.