Quote from: blaklab on August 22, 2017, 01:48:38 PM

Hi, i sent my coins with out a fee and the transaction was never confirmed. Some of my coins returned but 2/3 of them are not back. I read on a forum that if i cancel the transaction they will return. The instructions are posted below. I can navigate here and have backed up my wallet but being new to coins wanted input if this is correct and will work. Thanks in advance for any help.

Quote
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" -zapwallettxe

The correct command is -zapwallettxes.

Zapwallettxes will remove the transaction from your wallet and stop the rebroadcasting but will not force it out of the mempool in the other nodes. You can try to send another transaction using the inputs but it can get rejected if the transaction isn't out of the mempool in the other nodes.

Usually, you can successfully do this if the majority of the nodes and miners have your transaction dropped out of their mempool.

Quote from: efeaydin on August 22, 2017, 02:04:08 PM

You can also double spend it with a higher fee.

If you don't have opt-in RBF enabled, you would require the participation of a miner or the condition which I've said above. Zapwallettxes will work just fine.