So I just bought a new laptop with 1TB of storage. For some reason the drive is partitioned into a 400GB (C://) and 600GB (D://). The D drive is labeled "data" and the C drive is the OS drive. Is there a way to combine these drives into one drive so that the OS has 1TB and when I install programs, they will install to the OS drive? I have tried EaseUS Partition Manager which did not allow me to combine the C and D drives. Any ideas?