user42006: I plan on reformatting my main drive. I did this once before and of course lost access to my Bitcoin Core wallet and the Bitcoins therein.
Does anybody know how I can go about transferring my Bitcoins before or after I reformat my drive?
Can I just copy and paste the Bitcoin Core folder to my second drive before formatting, and then transfer it back afterwards?

user26873: You can just copy your wallet.dat from your local wallet directory. If using windows it will be in %appdata%/Bitcoin. After reformatting download a fresh copy of Bitcoin Core and replace the wallet.dat with the one you saved prior to reformatting. 
There's also the method of using the backupwallet and importwallet commands. https://bitcoin.org/en/developer-reference#backupwallet

42006: <p>I plan on reformatting my main drive. I did this once before and of course lost access to my Bitcoin Core wallet and the Bitcoins therein.</p>

<p>Does anybody know how I can go about transferring my Bitcoins before or after I reformat my drive?</p>

<p>Can I just copy and paste the Bitcoin Core folder to my second drive before formatting, and then transfer it back afterwards?</p>
 26873: <p>You can just copy your <code>wallet.dat</code> from your local wallet directory. If using windows it will be in <code>%appdata%/Bitcoin</code>. After reformatting download a fresh copy of Bitcoin Core and replace the wallet.dat with the one you saved prior to reformatting. </p>

<p>There's also the method of using the <code>backupwallet</code> and <code>importwallet</code> commands. <a href="https://bitcoin.org/en/developer-reference#backupwallet" rel="nofollow noreferrer">https://bitcoin.org/en/developer-reference#backupwallet</a></p>
