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The disk should now show up in 'computer.' you'll just need to format it (pop-up option when you first double-click on the drive). follow the steps (prompts) and then the bar changes to blue. choose the only available option on the list (it's 'initialize disk' or 'optimize disk'). In disk management (control panel>administrative tools>computer management>disk management), right-click on drive 1 (which currently has a black bar across the top). after hours of searching online for solutions, i tried something else. I had the EXACT same issue with my new external hard drive (320gb seagate momentus).
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The Geeks at Best Buy don't have a clue why it's acting this way.
#Seagate backup plus slim 2tb not recognized Pc#
Stranger yet, when the drive is connected to another Vista PC it shows up instantly. Why doesn't the drive show up in the list under START > COMPUTER? If it doesn't show up there with a letter assigned I can't use it. The computer recognizes that the drive is there. Under General it says "This device is working properly" Right-clicking the Drive 1 here and selecting Properties brings up a box labeled TOSHIBA MK1646GSX USB Device Properties. It also shows the DVD drive and the printer if I have it connected. This screen shows the C: drive as Disk 0 and the external iomega drive as Drive 1. If I go to START and right-click COMPUTER and then select MANAGE to get the Computer Management screen and then select Disk Management, I get the screen showing all the drives connected. All that show is the C: drive, the D: Recovery partition of the C: drive, the DVD drive and, if I have it attached, my HP 3180 inkjet printer. However, when I go to START > COMPUTER the drive doesn't show up on the list of drives. When I plug it in to a USB port the computer "dings", the power light on the drive lights up and I can hear the drive running if I put it up to my ear. I bought an iomega 160 GB eGo external USB-powered hard drive which is supposed to be pre-formatted and ready to go (plug-and-play). Internal hard drive - 80 GB Hitachi HT541680J
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