Just an update, I took my drive to a shop to see if their computers would recognize it. Their computers did the same thing that mine did (recognized the drive, but couldn't access the file system). I guess at this point, I'm willing to accept that the drive is probably dead, but if anyone else has suggestions about possible fixes, please let me know. Also, in "Disk Management", the drive is marked as "unallocated". If I initialize the disk, is there a chance it would work? Forgive my lack of knowledge about this stuff, but could the drop have caused some sort of corruption in the file system? I feel like it's not possible, but I might as well ask since I've got nothing to lose now anyway.