I’ve always been a big fan of anything that Piriform has to make.  CCleaner kept my computer running fast though my time at Berea College.   Defraggler came out later and is my default defrag program.  Now there is a new piece of software that will be very handy when I want know more about my computer or someone elses.  It’s called Speccy and it does a great job at putting all of your computer’s information in one place.