System hung while reformatting, now HDD fails

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my friend bought 2010 macbook pro (9,2) , asked me wipe clean her. working fine noticeably slow. proceeded clear pram holding command + option + p + r while booting. mac restarted expected, far good.

booted recovery mode holding command + r. opened disk utility , formatted drive. went smoothly, took 30 seconds. went install osx lion (the current os on mpb) , asked me connect wifi. did , estimated 43 minutes until completion. after 15 minutes got error saying unable contents osx lion.

@ point wouldn't boot off hdd because had formatted , install of lion failed. reformatted 1 more time , tried install lion again. failed again same message. @ point hdd started fail.

rebooted recovery , drive not present in disk utility. rebooted once more , drive had appeared, time , every time since then fail format drive. stuck @ 50%. waited while , did forced shutdown. can damage hard drive? tried on , on again drive formatted no luck.

had bootable usb lying around mavericks on created unibeast. tried installing off usb , failed after period of time.

took hdd out of mpb , stuck main rig (hackintosh). when booted took longer usual (30 seconds) past ahci screen computer detects drives. did in order determine whether faulty hdd cable in mpb causing intermittent problems.

appears me hdd toast. running fine until tried format it. ideas on try?

tl;dr tried clean install of lion , hdd hangs @ 50% when formatting.
 

your hdd starting fail before format, why machine running slow before touched it.
 


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