I need help badly. I bought a laptop from an aquantance of mine from work. A toshiba portege, when I checked the specs. The Hdd was 500gb that was divided to 3 partition. When I reformated my laptop because of a virus. I removed the drive D partition. then suddenly all the partition dissappeared and all was left was an 8 gb capacity. I don’t know what to do, how can I get the 500 gb back?