user4711: I have a bitcoin wallet on my PC  but I just recently downloaded the MAC version of it.  I would like to initialize it with the blockchain from my PC so that I don't have to download it all over again.  Is that possible?

user38151: Just to avoid people missing the key information about the wallet and blockchain - one is very private information and one is public information.  In copying as said here: How to transfer only the blockchain to a friend's computer? 

"To be more specific, you need to transfer the blocks and the chainstate directory. Don't transfer the database directory as it may contain remains from wallet.dat such as private keys. – rumpus" 


user1453: See https://en.bitcoin.it/wiki/Data_directory
Copy over your %APPDATA%\Bitcoin directory to ~/Library/Application Support/Bitcoin/
Your AppData directory should be:
C:\Documents and Settings\YourUserName\Application data\Bitcoin (XP)

C:\Users\YourUserName\Appdata\Roaming\Bitcoin (Vista and 7)

If not, you can always run explorer %APPDATA%\Bitcoin in Command Prompt (Super-R, type cmd, hit "Run") to find it.

4711: <p>I have a bitcoin wallet on my PC  but I just recently downloaded the MAC version of it.  I would like to initialize it with the blockchain from my PC so that I don't have to download it all over again.  Is that possible?</p>
 38151: <p>Just to avoid people missing the key information about the wallet and blockchain - one is very private information and one is public information.  In copying as said here: <a href="https://bitcoin.stackexchange.com/questions/10787/how-to-transfer-only-the-blockchain-to-a-friends-computer">How to transfer only the blockchain to a friend&#39;s computer?</a> </p>

<blockquote>
  <p>"To be more specific, you need to transfer the blocks and the chainstate directory. Don't transfer the database directory as it may contain remains from wallet.dat such as private keys. – rumpus" </p>
</blockquote>
 1453: <p>See <a href="https://en.bitcoin.it/wiki/Data_directory">https://en.bitcoin.it/wiki/Data_directory</a></p>

<p>Copy over your <code>%APPDATA%\Bitcoin</code> directory to <code>~/Library/Application Support/Bitcoin/</code></p>

<p>Your AppData directory should be:</p>

<pre><code>C:\Documents and Settings\YourUserName\Application data\Bitcoin (XP)

C:\Users\YourUserName\Appdata\Roaming\Bitcoin (Vista and 7)
</code></pre>

<p>If not, you can always run <code>explorer %APPDATA%\Bitcoin</code> in Command Prompt (Super-R, type <code>cmd</code>, hit "Run") to find it.</p>
