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Quote from: jackjack on August 07, 2011, 05:27:41 PM

Ultimate way to delete your forever unconfirmed transactions

Backup your wallet just in case
Download Pywallet
Run './pywallet.py --web'
Go to http://localhost:8989 in your browser
Fill the Delete form like this:
- Wallet Directory: /your/wallet/directory
- Wallet Filename: yourwalletfilename
- Key: all
- Type: leave 'Transaction'
Click the Delete button
Run 'bitcoin -rescan'
Done, no more unconfirmed tx's

Hey,

I just try to follow this instruction... but got problems.

I downloaded pywallet and run pywallet.py --web. If I run it it wants to download a file called "pywallet.py" which I did...
But what to do now?

If I type in http://localhost:8989 in my brower I just get a message that it is not available.

Does my wallet needs to be open at the time I do this?

how about just start core with -zapwallettxes ? the unconfirmed tx will be gone.

My unconfirmed transaction was 100% restored after opening bitcoin-qt with the following command...

Code:

"C:\Program Files\Bitcoin\bitcoin-qt.exe" -zapwallettxes

There was no need to install any additional programs. The functionality is built into bitcoin-qt.

For the uninitiated, here's how to run the command above on Windows... (note: this will only work for bitcoin-qt v9+)

Open your Bitcoin Core wallet (bitcoin-qt.exe).
Make a backup of your wallet, just in case [File > Backup Wallet].
Close Bitcoin-qt (don't just minimise it, close it).
Make a new shortcut or copy your existing bitcoin-qt shortcut.
Right-click the new copy of the shortcut and choose Properties.
Add " -zapwallettxes" (with a space and without quotes) to the end of the existing 'Target' field (see the command above - your path may be different, so just leave your path as it is).
Click OK to save and close the properties window.
You can now open your Bitcoin Core wallet using this new shortcut. After it opens, you should see "rescanning network XX%".
Done! Your unconfirmed bitcoin should now appear in the balance area.
Close your wallet.
Delete the shortcut you just created to prevent accidentally using it again.
Open your wallet using the original shortcut.

The lesson: Don't be a potato and send your transactions with zero fees!

If I have missed something, please let me know.

Actually the easiest way on Windows (assuming Bitcoin is installed in default location) can be boiled down to simply:

Backup Wallet (always before messing with your wallet)
Start->Run->type "cmd" -> hit enter, a black command prompt window should appear
Type

Code:

"C:\Program Files\Bitcoin\bitcoin-qt.exe" -zapwallettxes

No need to mess with shortcuts or anything, this will launch the GUI one time using the -zapwallettxes flag which is what you want in this case.

Does someone knows how to do that on mac ? I'm using bitcoin core 0.12.1

In Terminal type: open -a bitcoin-qt.app --args -zapwallettxes