Seagate Problem

[Jethro69]

My Seagate external HD doesn't power down and isn't recognized on my computer and a laptop.
I don't want to lose any data. What do I do.
Jethro.

 

[Peter.Cort]

Right click my computer, go to manage, and click on disk management when the external is plugged in and everything, it might be that one of your existing drives shares the drive extension (A: C: D: etc..) and it doesn't show up because of it. also make sure all your wires are plugged in all the way and such.