My external hard drive is suddenly not showing up anywhere on my computer except my device manager. It was working completely fine a few days ago and showing no sign of slowing down, all of this mess just happened overnight. It doesn't show up on windows explorer, disk management or even in the cmd (using diskpart and list disk), however it DOES show up in the device manager. The disk itself also seems to recognize that it's been attached to my laptop, because whenever it is connected it's little white light lights up and it starts whirring like it always does (not too loud, it doesn't sound broken). I used the SeaTools app on Seagate's website(my drive is from Seagate) and that app doesn't show my external drive either. I should also say that right around the time this disk offed itself my laptop also became extremely slow... taking really long to restart, shut down and boot up, much longer than before. I have no idea what is happening or why and I would greatly appreciate some help.