I don't have a solution, just some questions and suggestions.
What operating systems do you have on your PC and laptop?
How many partition(s) do you have on the drive, and what file system type(s)? (Fat32? NTFS?)
Is it an option for you to make the drive empty (it's my understanding that it already contains data, since you could use it from the laptop), then delete all the partitions (in Disk Management) and create a new partition? Maybe you could do this on the PC for bonus points.