Fixing Unconfirmed Zero Confirmation Transactions

If you're ever in the unfortunate position of having sent a transaction and it still hasn't shown up on the blockchain hours or even days later then this post is for you. Even though your coin may seem to have disappeared it is most like locked in your wallet and the software just thinks it has been spent. As long as you keep the private keys safe the coin is safe too.

There are several ways you can try fix this issue and they should all work whether you are working with Bitcoin or another Bitcoin based digital currency. Remember before you try anything; back up your wallet to stay make sure you have a safe copy.

1. The first and most simplest way of unlocking your coin is a simple rescan of the blockchain. You can access this via the Debug Console in the Help menu. Once the console has loaded type “-rescan” and hit enter. This should go through the history related to your addresses and if the transaction isn't found on the live blockchain then your coin will no longer show as spent and you should be able to rebroadcast it.

2. The second way is by downloading a fresh copy of the blockchain. Close your wallet application and navigate to the folder where your coin files are stored. On Windows this is usually ‘C:/Users/PCUSERNAME/AppData/Roaming/Bitcoin' and is where you will find a copy of your wallet which you should back up. You can then delete every other file in this folder apart from wallet.dat and then reopen the wallet software. This should initiate a new download of the blockchain and as it is verified your transaction will either appear unsent or verify and go through to the original destination.

3. The last option is to make a backup of your wallet.dat file using the built in Backup option from your wallet software. Then completely uninstall your wallet software and make a fresh installation using the official installer. Once it has reinstalled you can import your wallet.dat by moving the backup to the data folder described in the previous option or importing the private keys manually. This should either verify or unlock your coin.

It can be frustrating and worrying when your coin is locked and it shouldn't happen often. The only time I've seen this issue is when your computer battery dies in the middle of the process or there was an underlying problem with the network connection when the transaction was made. With one of the above options your coin should now be unlocked or sent to the original destination. If this works for you, help other out in need by sharing this post with a friend in need or your favourite website as thanks.

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