First, Always backup your wallet.dat. Always !! Once you have backed up your wallet.dat, you can try this. Delete all files in the %appdata% folder except the wallet.dat. If it doesnt work then try this also: xfuel.exe -salvagewallet option: this attempts to recover and dump the private keys from the wallet. Or you can check this out: https://github.com/lionzeye/reddcointools. Even thought it says reddcointools, it should work. You only need the dbdump.py (which I have attached, unzip it). You also need to install python: https://www.python.org/downloads/windows/ Run the wallet like this: xfuel.exe --detachdb There are other files there, you could try them if the dbdump.py does not work.