Before u started be sure u extracted most valuable bitcoin forks:
https://steemit.com/bitcoin/@pieczywo/how-to-extract-multiple-bitcoin-forks-easiest-and-fastest-way
Bitcore BTX (02.11.2017 block 492820) 1 BTC : 0,5 BTX
https://coinmarketcap.com/currencies/bitcore/
1. Backup your bitcoins
Create new wallet and send your bitcoins from old to the new one. For fast and easy use i recommend https://electrum.org/
2. Export your private keys
You can find multiple ways to do this e.g.
To export a private key from your Bitcoin-Qt / Bitcoin Core client:
Launch your Bitcoin client
Click on 'help' in the menu bar (top right)
Click on 'debug window'
Select the 'console' tab
If your wallet is protected by a passphrase (i.e. you have to enter a passphrase before you can send) unlock it by typing
walletpassphrase "your walletpassphrase here" 600
dumpprivkey [your Bitcoin address here]
This will return the private key which will start with the number 5
3. Install Bitcore Client
https://github.com/LIMXTEC/BitCore/releases
4. Import priv keys
Start Bitcore QT. As soon as your wallet has been synced go to Help->Debug Window
Select Console
If your wallet is encrypted it must be unlocked first. Enter "walletpassphrase [yourpassphrase] 600" (without the "" and without [ ])
Now you are ready to import your private key. Enter "importprivkey [yourbitcoinprivkey]" (without the "" and without [ ]). Make sure there are no spaces in your private key.
5. Selling this tokens
https://www.cryptopia.co.nz/Register?referrer=gremlin000
Crytopia allow trading BTX to BTC and then to any other cryptocurrency with low fees without verification.
Here are some other markets accepting bitcore
https://coinmarketcap.com/currencies/bitcore/#markets
In the future i will add more instructions.
See also: https://steemit.com/bitcoin/@pieczywo/how-to-get-clams-from-btc-for-long-term-holders-12-05-2014