[ubuntu] Failed Hard Drive, I Think?

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http://ubuntuforums.org – My laptop won't boot anymore, and I'm thinking that the problem is the HDD. I took the HDD out and put it in a external enclosure and connected it to my spare computer running Ubuntu. When I opened the Disk Manager it said that the HDD wasn't even partitioned!!!! The Windows partition wasn't showing up at all! Disk Manager is showing the HDD as unused. Is there anything I can do? Thank you so much. (Hardware)