title: Python writing/Modifying MBR
body: <p>I'm working on a programme to modify the MBR. The thing is i can open it with.</p>
  
  <pre><code>a = open(r"\\.\PhysicalDisk0", "r+b")
  a.write("data")
  </code></pre>
  
  <p>The code dosent shows any errors and when I read the MBR again it doesn't show the data I wrote. Any solutions?</p>