Unmountable_Boot_Volume recovery?

the recovery console does not erase anything unless you tell it to.
It sounds like the system is not seeing the partition information properly, or the hdd chip is failing.
and no, I dont think that you did anything wrong yet.
So, for continuation, try removing the drive and slaving it off in another system. Boot to the other system and see if you can recover data.

If you haven't told the Recovery Console to Format the drive the data will still be there.

I would remove the drive slip it into a USB Caddy and save your data this is easier than fitting it to another computer as a Slave and generally speaking faster as well.

Now for the traps you'll most likely need to Take Ownership of the Files and if you have encrypted them you'll need to save the encryption key as well so that you don't have a jumble of garbage present when you try to open the files.

The directions for Taking Ownership of the Files are here

http://tinyurl.com/3aw7

The way to save the Encryption Key for Windows is here

http://tinyurl.com/orpmf

Now if you have Formated the Drive you can still recover the data but it's going to cost you for at the very least the cost of a decent Data Recovery Program the best available is On Tracks but it's also the most expensive the others in the list are slower and I've not used them all but one may suit your needs

http://tinyurl.com/pfuhz

http://tinyurl.com/afu2j

http://tinyurl.com/rmvrv

http://tinyurl.com/nc4kx

http://tinyurl.com/kdeu

http://tinyurl.com/70lc

http://tinyurl.com/djw6u

http://tinyurl.com/f73se

This one is only any good if you know HEX inside out

http://tinyurl.com/m4w5s

When you are performing any Data Recovery Operation you [b]NEVER[/b] write the saved data to the HDD that you are recovering it from you always write it to another drive to prevent overwriting data that you have yet to recover.

Col