If there is a (hidden) recovery partition on the drive you should start a thread asking for advice before trying TestDisk.The situation with a "lost" hard drive typically arises after Windows has been reinstalled or when a slave/external drive is moved to another computer.If the drive/partition shows up in Device Manager and Disk management, but NOT in "My Computer", chances are that it is "only" the partition table that is missing or corrupt.You can use a freeware program called TestDisk to repair the partition table and get...