Windows 7 External hdd not showing up in My Computer and Disk Management is not up-to-date

[Kazimali]

Hi,

I have a problem with my hdd. It hasn't fallen or anything but just all of a sudden it doesn't show up in My Computer. Before, it was showing up but was not accessible but this time when i try to change letter, it tells me that the disk management is not up-to-date. I have a Samsung M3 1TB portable hdd. I have tried the Hdd in other PCs but I'm getting the same problem.​

 

[patcooke]

First try plugging it into another pc. This will help determine if the problem lies with the drive or your pc. Also try using a different connecting cable to test if that is the cause.

 

[Joe S]

Also don't use a hub and if it's a powered drive plug in directly to the wall instead of a surge protector.
Joe

 

[Kazimali]

I have already tried the same thing on other PCs but I'm getting the same problem...

 

[Joe S]

The drive is probably corrupt. Maybe TestDisk http://www.cgsecurity.org/wiki/TestDisk will fix it or some data recovery software if you need the data Recuva http://www.piriform.com/recuva is a free one.
Joe

 

[Pauli]

A main thing is, can you see the disk in BIOS? Sometimes Windows fails, even if the disk shows in BIOS. If it shows there, it's probably an issue of partition.