0

In short,

And the confusing part (if reformatting a hard drive containing bitcoins was not confusing enough!) is that the recovered .dat files are 7GB , 13GB and 8 kb.

Obviously, trying to use the recovered wallet.dat with Bitcoin-qt failed.

Chances are that these .dat are not wallets but I though this would be worth a shot considering how massively more valuable BTC are compared to 3 years ago.

Anything I can do with these recovered files?

Thank you!

  • Re: filesize, I've heard it's not uncommon for PhotoRec to recover a file but for it's file size to be much more inflated than the original. – user1202278 Nov 29 '13 at 20:18
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  • Install Python 2.7 and download pywallet to your c:\ drive.
  • Copy your corrupt wallet.dat file to c:\
  • Open a Command Prompt and type:

    C:\>pywallet.py --dumpwallet --datadir c:\  --wallet=wallet.dat --recover --recov_device=c:\wallet.dat --recov_size=416Gio --recov_outputdir=c:\
    

    It should extract all the keys to a new wallet on c:\ Copy the new wallet.dat to the c:\users\USERNAME\Appdata\Roaming\Bitcoin folder

  • rename it wallet.dat.

  • Start up Bitcoin-QT with the --rescan switch. It should take a while, but eventually it will start up and your coins are back.

1

Checkout pywallet. Its a python script that may be able to help you out by recovering your private key. I've had similar issues with Multibit in the past. Is your wallet encrypted?

https://github.com/jackjack-jj/pywallet

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