_ Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top up vote down vote favorite 12 I had Bitcoin-Qt on my computer with several bitcoins in my wallet, using Vista.Then my computer crashed.Finally I was able to get my computer fixed and download a new version of Bitcoin-Qt.Now I would like to import my original wallet.dat from the old client which was encrypted into an new version of Bitcoin-Qt.How do I do that?bitcoin-core wallet-import up vote down vote First, close the Bitcoin-Qt client.Then you have to locate your Bitcoin folder.For Windows, it should be here: %APPDATA%\Bitcoin In that folder, there should be a wallet.dat file.If you currently have no bitcoins in your wallet, you can just delete that file and replace it with your backup.If you have some bitcoins in this wallet as well, backup that wallet file as well, or send all the coins to an address from your backed up wallet.

When you placed the other wallet.dat file in place, you should run Bitcoin-Qt with the -rescan option.Here's how to do that in Windows: Go to C:\Program Files (x86)\Bitcoin using Windows Explorer.In that folder, hold shift and right-click and select Open command window here (picture).In the command prompt, type bitcoin-qt.exe -rescan and hit enter (picture).Now Bitcoin-Qt should start and rescan the blockchain to calculate the balances of the addresses in your wallet.dat file.ethereum stock coinbase(Source for pictures: cant see bitcoin after restore of backup) up vote 0 down vote I think the above answer is good, but I have typically restored a few times with 1.bitcoin amsterdam septemberShutDown BitCoin Client 2.ethereum miner download

Find your wallet location (%APPDATA%\Bitcoin) OR for example : C:\Users\UserName\AppData\Roaming\Bitcoin 3.Delete that wallet.dat file 4.Paste your other wallet.dat file into the folder.Open BitCoin Client , blocks get checked and updated, and you should see your amount.I'm not sure that you need to do command prompt with the -rescan... I didn't have to.. Your Answer Sign up or log in Sign up using Google Sign up using Email and Password Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service.bitcoin usa faucetBrowse other questions tagged bitcoin-core wallet-import or ask your own question.bitcoin skateboardA wallet backup protects your bitcoins against computer or software failure.bitcoin qt wallet import

It may also help you retrieve your funds after your device was stolen or lost.There are generally 3 ways to backup a Bitcoin wallet.Different software supports different methods.Make sure you're familiar with your wallet before loading it with bitcoins.If you lose the backup and can't access your wallet for some reasons, your bitcoins are permanently gone!Remember: Always encrypt your wallet with a strong password to make it more difficult for an attacker to steal your coins!Wallet.datThis method is used by Bitcoin Core (and few others) and comprises of backing up a wallet.dat file.It's a file that holds keys to spend outputs, addresses, transaction information, and other metadata such as contacts.It has a different location based on an operating system.Windows: %APPDATA%\BitcoinLinux: ~/.bitcoin/Mac OS X: ~/Library/Application Support/Bitcoin/ If you can't find the location please refer to this page.BackupLocate wallet.dat and copy it to another device only you have an access to.

It may be a USB drive, CD, another computer or your private home cloud storage.You may also copy it to a cloud storage such as Mega or Dropbox but make sure it's encrypted.Anyone that gets access to the unencrypted file will be able to steal your coins.Note: If you use Bitcoin Core make sure to backup wallet.dat file regularly after every ~100 transactions.This way you make sure you have backup of all wallet and change addresses.RestoreTo restore the backup, simply copy your backed up wallet.dat over an existing one in the bitcoin data location.BIP 32BIP 32 is a method of determining key pairs from a single seed.This seed is used to generate a master private key (xprv) which then can be imported to any BIP 32 compliant HD wallet.To backup your wallet either copy the master key to a text file and back it up to another device (encrypted of course) or create a QR code, print it and store it somewhere safe (e.g.vault).If you decide to store the master key as a QR code make sure to disconnect from the internet.To restore the backup, simply paste the xprv string to your wallet when asked to.We won't go into details because most BIP 32 compliant wallets also support the next feature.

If they don't, you may avoid using them.BIP 39BIP 39 describes a method of generating a mnemonic sentence - easy to remember set of words - that represents a seed which can be then used to determine wallet addresses (e.g.BIP 32).When creating a wallet for the first time, you're presented with the list of seemingly random 12 to 24 words.The more the words the bigger the security.Some wallets like Trezor let you choose the entropy yourself.BackupWrite down the words on a piece of paper in an exact order and store it somewhere safe like a vault.You can split it to many papers and hide each piece somewhere else.As with the master private key, you may also want to print the words as a QR code.Note: If you have to store the mnemonic on your computer or a device connected to the Internet, make sure it's encrypted!RestoreTo restore the backup, open your wallet software and look for "New/Restore" feature in the menu.When prompted, type in the mnemonic from your paper in the exact order.The wallet will then determine the rest of your keys and addresses.It will also restore your transaction history from the blockchain but you won't see any metadata such as contacts or transaction labels.If you need them, you will have to backup a wallet data file too.