Given the slim details you may want to head to http://www.drivesavers.com for data recovery and for the PC, send it off for repair or replacement.
I know many don't want to know about the PC, they just want it to work.
Bob
Sir, my hard drive has no access itself.. all data is safe in it.. but its not getting recognised.. hence cant boot/install windows itself..Please help.Waiting for your reply.
Thankyou.

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