If you are looking to do some partition editing or management, I have used EASEUS Partition Master in the past. The Home Edition is Free.
From their website:
EASEUS Partition Master Home Edition is a FREE ALL-IN-ONE partition solution and disk management utility. It allows you to extend partition (especially for system drive), manage disk space easily, settle low disk space problem on MBR and GUID partition table (GPT) disk under Windows 2000/XP/Vista/Windows 7 (SP1 included) 32 bit and 64 bit system.
link to Home / Personal edition here: