In used condition was working fine EXCEPT it needs a new battery (needs to use power point to run) until we up-graded was running Vista Home Basic have done a factory restore before listing it, I don't know too about computers so I hope this link can help because I don't know how many "Cores" or how big the "Hard Drive" is". http://www.cnet.com/products/hp-compaq-presario-cq61/specs/

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