|This is a laptop. Did it not have its battery in place ? A laptop battery acts as a UPS in case of power loss. Before you have begun such a critical task, the battery should have been put in the laptop and fully charged.|
You should also have created Recovery Disks when you bought the laptop.
Now, most probably the partition information may have been damaged due to power loss on the hard disk such that you cannot re-initiate the factory install. Try re-initiating the factory restore and see.
If you are not successful, I suggest you should contact Acer for help and for obtaining Recovery Disks with the documentation proving that the laptop belongs to you.