Quote from: clochard on May 22, 2014, 06:47:33 PM

Hey guys,

I have a new pc, my old one was not working anymore and I installed Bitcoin Client to restore my bitcoins from the wallet from the other computer. I made a back-up last year around December. The old wallet was encrypted with a password that I have used multiple times, I have written down and I am 100% is correct.

Edit: there is one thing I should also mention and I am not sure if it is related to this. The last time I tried to open my bitcoin client in the old computer I received a blockchain error: database corrupted.

I tried to send my Bitcoins today from my Bitcoin client to electrum, and it requested a password.

When I installed the new Bitcoin client however, I felt a bit insecure and put a new password on it. I typed it twice and wrote it down and I am pretty sure also this password is correct. The coins and transactions showed up however.

Today when I was going to transfer the coins, I was confused which password I had to use: the old one, or the new one? So I have tried them both multiple times, but the Bitcoin client keeps repeating that it is the wrong password.

What is happening here? Both passwords I am more than 100% certain about.

I have done already the following things:

- Changing the name of the wallet.dat to wallet1.dat and putting the old back-up wallet.dat in the same folder, restarting Bitcoin client and attempting to make a transfer. I put the password, but again wrong...
- Trying variations on the passwords, with capital letters, without, etc.

I could still try desintalling Bitcoin client from this pc, delete all folders including the wallet.dat, install Bitcoin client again and putting there the old wallet.dat, without encrypting the new wallet with a new password. I am not sure if this is supposed to work?

Are there any other options to solve this issue? Luckily, I have written down the password at the time I made it (and used it some times), so even if there is a typo somewhere it should be something very close to what I wrote.

Feedback is highly appreciated!

Best,

Clochard

If your pretty sure you know the password you may be one character out, Upper/lower case, you should use Revalin's script. (https://bitcointalk.org/index.php?topic=85495.msg942017#msg942017)