user4957: I don't want 12 gigabytes stored on my boot drive.  Can I change where the  Bitcoin-Qt stores the block chain?

user3056: You surely can. Just add -datadir parameter to the command line, when starting bitcoin-qt.
For example:

bitcoin-qt.exe -datadir=D:\BITCOINDATA


4957: <p>I don't want 12 gigabytes stored on my boot drive.  Can I change where the  Bitcoin-Qt stores the block chain?</p>
 3056: <p>You surely can. Just add <strong>-datadir</strong> parameter to the command line, when starting bitcoin-qt.
For example:</p>

<blockquote>
  <p>bitcoin-qt.exe -datadir=D:\BITCOINDATA</p>
</blockquote>
