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POCan I get write access to raw disk sectors under Vista and Windows 7 in user mode?
 

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  1. POCan I get write access to raw disk sectors under Vista and Windows 7 in user mode?
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    <p>From the <a href="http://www.eldos.com/press/4285.php" rel="nofollow">RawDisk website</a>: </p> <blockquote> <p>The new security model of Windows Vista puts tight restrictions on applications executed in user mode. Even with elevated administrative rights, the application can’t get write access to raw disk sectors.</p> </blockquote> <p><strong>Is this true?</strong></p> <p><a href="http://support.microsoft.com/kb/942448" rel="nofollow">From the Microsoft doc</a>:</p> <blockquote> <p><strong>The changes</strong> to the file system and to the storage stack <strong>do not apply</strong> if the volume is not mounted or <strong>if the volume has no file system.</strong></p> </blockquote> <p>Please give</p> <ul> <li>either a link to the official Microsoft doc confirming the RawDisk website</li> <li>or a working code example. (I obviously failed to create one, <code>CreateFile()</code> call fails with <code>ERROR_ACCESS_DENIED</code> if <code>GENERIC_WRITE</code> is set.)</li> </ul> <p>Other relevant Microsoft docs that I have so far found:</p> <ul> <li><a href="http://msdn.microsoft.com/en-us/library/ff551353%28v=vs.85%29.aspx" rel="nofollow">Blocking Direct Write Operations to Volumes and Disks</a></li> <li><a href="http://msdn.microsoft.com/en-us/library/windows/hardware/ff549427%28v=VS.85%29.aspx" rel="nofollow">IRP_MJ_WRITE</a> at <code>SL_FORCE_DIRECT_WRITE</code></li> <li><a href="http://msdn.microsoft.com/en-us/library/ff544638%28v=vs.85%29.aspx" rel="nofollow">FLT_IO_PARAMETER_BLOCK structure</a> at <code>SL_FORCE_DIRECT_WRITE</code></li> </ul>
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    1. COWhat happens when you try (with a sacrificial volume of course)?
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    2. CO@Richard I get `ERROR_ACCESS_DENIED` (0x5). I am testing on a raw SD card.
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    3. COSo that's your answer.
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