user5937: I need to manually resync from scratch due to a database corruption caused by windows auto-rebooting.
Where is the blockchain stored so I can delete it (and hopefuly prompt bitcoin qt from creating a new one)?
see Bitcoin QT error. How can I prevent corruption of database?

user208: Start your client with the -reindex command-line option. This will cause the database to be wiped and rebuilt from scratch.
To answer your actual question: see the Data directory entry on the Bitcoin wiki.

5937: <p>I need to manually resync from scratch due to a database corruption caused by windows auto-rebooting.</p>

<p>Where is the blockchain stored so I can delete it (and hopefuly prompt bitcoin qt from creating a new one)?</p>

<p>see <a href="https://bitcoin.stackexchange.com/questions/12165/bitcoin-qt-error-how-can-i-prevent-corruption-of-database">Bitcoin QT error. How can I prevent corruption of database?</a></p>
 208: <p>Start your client with the <code>-reindex</code> command-line option. This will cause the database to be wiped and rebuilt from scratch.</p>

<p>To answer your actual question: see the <a href="https://en.bitcoin.it/wiki/Data_directory" rel="nofollow">Data directory</a> entry on the Bitcoin wiki.</p>
