External WD Hard Drives has problems

[lostsoul62]

I have a WD 500 passport that works find. the WD 750, 1TB, and 2TB don't show up except the 750 which did show in Disk manager for a little while, all the ports are good and all the cables are good. Has anyone experience this are have any suggestions? These drives work in one of my computers but not the other so is it because I need drivers?

 

[johnb35]

I'm assuming they are usb drives. Do any other usb devices show up when you plug them in? Are you trying to plug them into a usb 3.0 port and you didn't install the 3.0 driver yet?