Access Denied on my new Seagate Backup Plus Ultra Slim Metal Rescue Edittion

[aneor]

I purchased this laptop and the external drive from Costco.  I was able to install and view/save files to the external drive without any issue.  I then installed the externall drive on my MacBook Pro 13" with Retina Display and was able to view/save files to the external harddrive without any issue.  

When I next went to use the external drive on the HP laptop, I get an Access is Denied error.  The external drive works just fine on my Mac.  I can't figure out why it is no longer working on the HP Laptop.

I'm unfamiliar with Windows 10 but I have checked to see that there are drivers.

Any thoughts?  Did installing it on my Mac break the ability to use it on a PC?  I have another Seagate external drive that I can move between both operating systems without any issue.

[WAWood]

@aneor 

Some Seagate drives have a nasty habbit on installing proprietary software that basically "locks" the drive to a specific PC.

If you then "move" the drive to a different PC, you could have serious problems getting access again from the original PC.

Sorry, but we don't have the resources in-house to debug this kind of issue.  You need to contact Seagate support and see what they recommend.  They might have something you can download that would basically "re-register" the drive with your original PC.

Good Luck