Yep, get the drive out, and when you get to it, check the connections, see what kind it is, if it's a platter drive, the type that has spiining disks in it, might even try tapping it with a spoon or somthing, quite often the drive head will 'stick' if dropped, a tap can often free up the head, then try it, if it spins up get your data backed up then run CHKDSK /R on it