Bitcoin QT delete address

Manual Steps

1. Copy your public receiving addresses from Bitcoin-Qt.
2. Go to the Bitcoin-Qt console: click Help/Debug Window and then select the Console tab.
3. Run dumpprivkey OurReceivingBitcoinAddress for each receiving address to be migrated to MultiBit.
4. Copy the results of dumprivkey for each address (which are the corresponding private keys).
5. Start the Multibit client and create a new wallet.
6. Open the exported file in a text editor.
7. Below the private key generated by MultiBit, paste the private keys you have copied above. Remember to paste them before the End of private keys line.
8. After each private key, add a date that is prior to when you created the corresponding wallet. (You can check this date in the Bitcoin-Qt Transactions tab and scrolling to the very bottom.)
9. Repeat for all addresses you want to move to Multibit Client.
10. Save the key file and import it to the Multibit client using Tools/Import Private Keys.
11. In order to protect yourself from theft, delete the private key files.
12. Done!

Third Party Approach

1. Visit . Drag the Bitcoin-Qt wallet.dat file into the dotted area. Follow the instructions.
2. Login to the new wallet. Under the Backup heading click download.
3. Open multibit choose Tools -> Import Private Keys. Now import the wallet.aes.json file just downloaded.
4. Delete the keys from the blockchain.info wallet.

Since the goal isn’t to setup a blockchain.info wallet you would be much better off using pywallet to dump the wallet and the keys directly.