user116253: I have a Bitcoin address that I want to guess its private key.
What's the most efficient way to do it?
I don't mean "use a trillion servers" but "use this program this way".
Note that it has to run on windows.
I know that it's pretty much impossible for a PC to guess a private key (more possibilities than atoms in the universe and all that) but still, it could be the very first key I try.

user63872: There is no known way to 'efficiently' guess at the private key for a specific address. The best method is simply brute force guess-and-check, and given the massive address-space, the chance of guessing correctly is essentially zero.

116253: <p>I have a Bitcoin address that I want to guess its private key.</p>
<p>What's the most efficient way to do it?</p>
<p>I don't mean &quot;use a trillion servers&quot; but &quot;use this program this way&quot;.</p>
<p>Note that it has to run on windows.</p>
<p>I know that it's pretty much impossible for a PC to guess a private key (more possibilities than atoms in the universe and all that) but still, it could be the very first key I try.</p>
 63872: <p>There is no known way to 'efficiently' guess at the private key for a specific address. The best method is simply brute force guess-and-check, and given the massive address-space, the chance of guessing correctly is essentially zero.</p>
