Are you tired of the built in defrag tool for Windows?  I needed to shrink a drive today and took a quick look for a defragger as I had not even been using the built in one.  Well, I came across one that seems to work pretty well and it is free!  It is from a company named Auslogics:

http://www.auslogics.com/en/software/disk-defrag

They have some other tools (try the products tab on their site) I might look into also.  They have one called BoostSpeed that might be intersting..

http://www.auslogics.com/en/software/boost-speed