title: android tools preview channel
body: <p>I have smtn that s driving me nuts in here,
  I have Android SDK, Eclipse juno, win 64 and I have this <em><strong>tools (preview channel)</strong></em>
  that is showed as not installed, when am trying to install it, then are the &quot;android sdk platform tools&quot; and the sdk Tools (the are uppon this ) uninstelled, so I would like to either install botth or just delete this preview channel.</p>