Idéalement, il faut que tu utilises un wallet ayant la fonction RBF qui permet, dans l'interface, de remplacer les fees.
Autrement,
Si la transaction a été faite avec Bitcoin Core,
[GUIDE] Delete your 0/unconfirmed transactions in 30 seconds
Cette méthode cité dans le thread semble la plus simple :
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
"C:\Program Files\Bitcoin\bitcoin-qt.exe" -zapwallettxes
in the window and hit enter
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.
Si la transaction a été faite avec un autre client permetant d'exporter la clé privé,
[GUIDE]Double-spending an unconfirmed transaction made with a third-party client
Si questions, demander à
jackjack.