I have a Seagate Backup Plus Slim 1TB External Hard Drive. Yesterday , while returning from work my HDD slipped from my hand and fell on the floor's surface. The HDD was Completely packed in its Ultra Durable Cover but after that happened i rushed to open my cover to see that my HDD was Okay or not. So while i was seeing it i found that it had a small scratch on it's surface but everything else was okay. when i powered it up i saw that the HDD's light was lit and the HDD was vibrating for 10-20 seconds but after that it stopped vibrating. I opened "This PC" and saw that it was not recognized in the window and the same was in disk management tool that in that too i couldn't find my HDD anywhere. After Searching YouTube for what could be the Possibilities i found that in cmd there is a command called DISKPART. I opened it but it was not listing my hard drive .Only where i could see my HDD was in "Safely Remove Hardware" section that was showing my Hard disk's original name but not that name which i have kept for it...I am searching for a solution to this issue but couldn't find one..Kindly Help Me in the situation....it would be very nice of you if you gave me the solution..