Because the process of sweeping a private key into your wallet requires a transaction on the bitcoin.To ensure this, you can disconnect your computer from the internet and still use the website as normal.
Help:How to import private keys in Bitcoin Core 0.7Before you import your private keys consider whether sweeping them might be better.HOWTO: Compile and Install litecoind on CentOS 6.4. Bitcoin QT View private key Bitcoin QT get private key.
Bitcoin wiki API - dsocorporation.comLiteaddress is one of the websites that can be used for this.
Developer Reference - BitcoinImport Wallet Create a new wallet by importing an existing wallet file.
How to double your BTC into BCC - 100% tested ! - The
How do I import private keys from Bitcoin-qt to Multibit client.If your Litecoin-QT wallet is not encrypted (not recommended) you can skip this step.You can create a new wallet and import a subset of the private keys from the old.
Importing private keys - MultiDogeBitcoin-QT 0.8.1 Windows client freezing when importing private-key. a private key. Bug report.
Click on Help, open the Debug Window and switch to the Console tab.Now we are ready to export the private key(s) from your bitcoin wallet: Exporting Private Key from Bitcoin Clients.
5 Steps to Install Bitcoin-Qt Faster - Bitcoin-en.comThe Bitcoin-Qt client currently does not provide any method to delete addresses.
private key import related queries in BitcoinXchanger
Litecoin QT import private key / Dogecoin hashrate wallet
To unlock your wallet you need to type in the RPC console: walletpassphrase MyWalletPass 60.Export a Bitcoin private key. If a problem occurs after this mistake, it is be necessary to export the private keys, reinstall Bitcoin and re-import private keys.