Linked Questions

0 votes
1 answer

What files do I need for backing up my wallet? [duplicate]

Is %APPDATA%\Roaming\Bitcoin\wallet.dat the only file I need to backup my wallet? I've heard about backing up every ~50-100 transactions is this correct? I thought that with the wallet.dat file, I ...
BitCoin New Guy's user avatar
1 vote
1 answer

wallet.dat backup and 100 pregenerated keys [duplicate]

Reading about the "change" addresses and doing "wallet.dat" backups, I keep reading that -by default- bitcoin-qt generates 100 keys and use them when you need a new address. My question is this: what ...
jcea's user avatar
  • 123
2 votes
0 answers

What to backup to save my coins? [duplicate]

Do I have to backup only wallet.dat or should I backup anything else to have my coins safe?
Michal's user avatar
  • 609
44 votes
10 answers

How can I keep my wallet secure?

The standard Bitcoin client does not encrypt wallet files, so any malicious user that gains access to this file will be able to transfer all the coins to their own wallet. Furthermore, if I lose the ...
Michael McGowan's user avatar
39 votes
5 answers

What is a deterministic wallet?

It sounds as if it's a process that enables a wallet to be rebuilt from a passphrase, or from several fragments scattered about. Could someone provide a detailed technical explanation?
Gary's user avatar
  • 7,593
52 votes
3 answers

How does change work in a bitcoin transaction?

It seems that when you send a bitcoin transaction, all the coins in the sending address are spent in that transaction, divided into the amount that you intended to send, and "change", which goes back ...
Thilo's user avatar
  • 4,759
5 votes
5 answers

My client stopped synchronizing, how can I access my wallet?

My wallet has been stuck synchronizing for 21 days, my transfer is in the block chain but I can't get it to sync with my wallet. I've closed firewalls, uninstalled and reinstalled QT with back up and ...
Glenn's user avatar
  • 51
8 votes
1 answer

How do I backup my wallet?

Using bitcoin-qt, multibit, or any of the others, how do I backup and save my wallet in case I need to reinstall Windows?
Rod's user avatar
  • 81
1 vote
2 answers

Does my Bitcoin-Qt wallet backup file have "everything" I need (private key)?

Does my Bitcoin-Qt wallet backup file have "everything" I need (private key)? I mean, is that the file I would copy and store offsite in case my house burns down? Does it have my private key encoded ...
obelia's user avatar
  • 316
2 votes
2 answers

How do I handle the risk that my hard disk crash?

I have good back up system. Can my wallet be backed up? Can I access it anywhere? If so how do bit coin system know that I am the one accessing it?
user4951's user avatar
  • 1,188
2 votes
2 answers

Are wallets compatible with different clients?

If I create *.wallet file in MultiBit, encrypt it with password and transfer some coins to it - does it tie me to this particular client, or can I open *.wallet file in any client
dark_ruby's user avatar
  • 133
2 votes
2 answers

When do I have to backup wallet.dat?

Is it obligatory to backup wallet.dat after each outgoing transfer? I understand it is, but not after each incoming transfer.
Michał Tajchert's user avatar