title: Why won't fiddler install my certificate windows 8? - unable to configure windows to trust Fiddler Root certificate
body: <p>I have an application which is making calls to twitter and I need to inspect the traffic so that I can learn more about oAuth.</p>
  
  <p>When I double click the ssl traffic I get a yellow box which prompts me to go and change the options (by the way I am running my app through a proxy).</p>
  
  <p><img src="https://i.stack.imgur.com/1qwUH.jpg" alt="enter image description here"></p>
  
  <p>After having read about using a certificate on my machine which fiddler creates I have clicked the link to let fiddler install certificates on my machine by following these instructions...</p>
  
  <p><a href="http://docs.telerik.com/fiddler/configure-fiddler/tasks/configurefiddlerforwin8" rel="noreferrer">http://docs.telerik.com/fiddler/configure-fiddler/tasks/configurefiddlerforwin8</a></p>
  
  <p>However instead of this happening...</p>
  
  <p><img src="https://i.stack.imgur.com/tUfum.jpg" alt="enter image description here"></p>
  
  <p>I get this error message...</p>
  
  <p>"unable to configure windows to trust Fiddler Root certificate" here is a screen shot....</p>
  
  <p><img src="https://i.stack.imgur.com/DYQhh.jpg" alt="enter image description here"></p>
  
  <p>When I checked the logs as suggested (although is confusing as I thought the log was to do with each individual request), anyway I saw this...</p>
  
  <p><img src="https://i.stack.imgur.com/rf47n.jpg" alt="enter image description here"></p>
  
  <p>I have even tried installing the certificate manually no no avail. Hope someone can help me get fiddler/ssl decryption working with windows 8! :-)</p>
  
  <p><strong>UPDATE : In response to Erics questions he made in the below answer...</strong></p>
  
  <p>Hi Eric thanks for replying.</p>
  
  <p>1) A box popped up saying 'Certificate Trust' this is the box I have taken a screen shot of above. It was the box that told me to check the log.</p>
  
  <p>2) I have an account and when I check my users it says I am an Administrator underneath my username.</p>
  
  <p>3) I have tried to run Fiddler as an Administrator to no avail.</p>
  
  <p>I also tried to drag and drop the certificate manually into the certmgr.msc tool and it comes up with a little round cursor with a line through it. Sounds like permissions but I just cant see why as I have full everything....</p>