title: an issue updating Android SDK Tools rev 19 to rev 20 using windows 7- 64bit
body: <p>I have an issue updating the android SDK tools rev 19 to rev 20 &amp; Android SDK Platform-tool rev 11 to rev 12.</p>
  <p>I checked the SDK manager log and it displayed the below error:</p>
  <blockquote>
  <p>File not found: C:\Program Files (x86)\Android\android-sdk\temp\platform-tools_r12-windows.zip (Access is denied)</p>
  <p>Skipping 'Android SDK Tools, revision 20'; it depends on 'Android SDK Platform-tools, revision 12' which was not installed.</p>
  <p>Done. Nothing was installed.</p>
  </blockquote>