Hitachi 500gb external hard disk not found in my computer

[jayaveer]

Hello sir,

hitachi 500gb external hard disk not found in my computer

 

[kenrivers]

Is this a new drive? If yes, the following links may help:
http://pcsupport.about.com/od/windows7/ht/partition-hard-drive-windows-7.htm
http://pcsupport.about.com/od/windows7/ht/format-hard-drive-windows-7.htm