|0x000000ED = UNMOUNTABLE_BOOT_VOLUME, as you know.|
0xC0000006 = STATUS_IN_PAGE_ERROR, which means the disk is largely dead.
Place drive in an enclosure, and run any / every hard drive repair utility you got. From there, hope your drive recovery software fixed enough of the data errors that you can successfully clone the disk to a new drive. You may need to purchase a recovery disk for the laptop if the clone isn't bootable.
Alternatively, you can mourn the loss of the data, replace the disk, get a system recovery disk, and use it.
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