title: Windows 7 - turn on IIS - failing
body: <p>I have been trying for a day now to enable various IIS services on a laptop.</p>
  
  <p>Using Control Panel, Programs and Features, Turn Windows Features On and Off.</p>
  
  <p>The key feature I am trying to enable is ASP.NET.</p>
  
  <p>I get a stupid error message that gives no clue (An error has occurred. Not all of the features were successfully changed.), but the event log shows a whole string of errors, starting as below.</p>
  
  <blockquote>
    <p>Unable to install counter strings because the
    SYSTEM\CurrentControlSet\Services\ASP.NET_64_2.0.50727\Performance key
    could not be opened or accessed. The first DWORD in the Data section
    contains the Win32 error code. 020000000E0E0000 </p>
    
    <p>Installing the performance counter strings for service
    ASP.NET_64_2.0.50727 (ASP.NET_64_2.0.50727) failed. The first DWORD in
    the Data section contains the error code. 02000000C9120000</p>
  </blockquote>
  
  <p>I have searched the net, and tried various remedies, all with no success.</p>
  
  <p>These threads discuss the same topic, without solving it: </p>
  
  <p><a href="http://social.technet.microsoft.com/Forums/windows/en-US/d711ecd1-620c-473c-af39-e607bbe2ec18/turn-windows-features-on-or-off-application-development-features?forum=w7itproinstall" rel="nofollow">http://social.technet.microsoft.com/Forums/windows/en-US/d711ecd1-620c-473c-af39-e607bbe2ec18/turn-windows-features-on-or-off-application-development-features?forum=w7itproinstall</a></p>
  
  <p><a href="http://blogs.msdn.com/b/tom/archive/2008/04/11/asp-net-performance-counters-missing.aspx" rel="nofollow">http://blogs.msdn.com/b/tom/archive/2008/04/11/asp-net-performance-counters-missing.aspx</a></p>
  
  <p>I tried uninstalling all versions of ASP.NET using aspnet_regiis.exe -Ua on each and every version on Framework and Framework64, then adding them back. None of this has made any difference whatsoever.</p>
  
  <p>Any ideas?</p>