I have a 300gb Sata hard drive that I partitioned into 3 partitions: (C:(System, OS) 60gb) - (D:(Music and Videos) 100gb) - (E: (My Studio) 140gb) Something happened and D: & E: disappeared. I bought a program called "Mini-tool Power data recovery" and I was successful in recovering all of my lost files. Now I want to repartition the hard drive back and just use it as one Partition because I bought two more hard drives to do what I had done with the hard drive in question. When I click on "my computer" it shows my C: as "28.8GB used of 58.5GB". When I right click "My Computer" and Click "Manage" it shows C: as "289.09GB". I want to stretch the 58.5GB to utilize the whole 289.09GB of the drive which should be 300GB which in tell means that there is almost 11GB still unaccounted for. What do I do to make this happen without reformatting the the whole drive and just start all over? Please help.