title: VS2022: "Diagnostic Tools" window no longer appears during debugging, can't bring it back
body: <p>I must have fat-fingered something to turn it off, but when I try to run any c# project (.net 6 windows wpf, or even just a commandline application) in debug mode, I no longer see the <code>Diagnostic Tools</code> window. This is the thing that displays a real-time chart of memory consumption and other things.</p>
  <p>I've been trying to re-enable <code>Diagnostic Tools</code> but so far haven't been able to do it. I can run in debug mode, everything else seems normal, I can add breakpoints etc. What could have gone wrong?</p>
  <p>This is so perplexing!</p>
  <p>Looking at the docs (<a href="https://docs.microsoft.com/en-us/visualstudio/profiling/profiling-feature-tour?view=vs-2022#measure-performance-while-debugging" rel="noreferrer">Measure Performance While Debugging</a>), it says...</p>
  <blockquote>
  <p>The Diagnostic Tools window appears automatically unless you have
  turned it off. To bring up the window, click Debug / Windows / Show
  Diagnostic Tools (or press Ctrl + Alt + F2).</p>
  </blockquote>
  <p>Here's what I tried:</p>
  <ul>
  <li><p><code>ctrl + alt + f2</code>   Does nothing.</p>
  </li>
  <li><p>In visual studio going to menu bar: <strong>Debug/Windows</strong>, there's no item for &quot;Show Diagnostic Tools&quot;.</p>
  </li>
  </ul>
  <p><a href="https://i.stack.imgur.com/rFI92.png" rel="noreferrer"><img src="https://i.stack.imgur.com/rFI92.png" alt="Show Diagnostic Tools -- not there!" /></a></p>
  <ul>
  <li>When I search for <code>Diagnostic Tools</code> in the Visual studio search bar, it gives me a link to Debugging &gt; General, but there is no checkbox for &quot;Enable Diagnostic Tools while debugging&quot; in the options dialog.</li>
  </ul>
  <p><a href="https://i.stack.imgur.com/utGrS.png" rel="noreferrer"><img src="https://i.stack.imgur.com/utGrS.png" alt="VS search for &quot;Diagnostic Tools&quot;" /></a>
  <a href="https://i.stack.imgur.com/22bVm.png" rel="noreferrer"><img src="https://i.stack.imgur.com/22bVm.png" alt="There is no &quot;Enable Diagnostic Tools when debugging&quot; option" /></a></p>
  <ul>
  <li><p>Of course, I also tried closing/re-opening VS. Also, performed an update and did a &quot;repair&quot; from the VS installer. Still the same behavior.</p>
  </li>
  <li><p>I also tried to &quot;Reset Windows Layout&quot; and &quot;Reset All Settings&quot; following the directions from <a href="https://social.msdn.microsoft.com/Forums/en-US/988b822c-be1b-41eb-a057-be261a04794a/closed-diagnostic-tool-window-and-cannot-get-it-back?forum=visualstudiogeneral" rel="noreferrer">this msdn forum post</a>. Still stuck.</p>
  </li>
  <li><p>According to Mohsyn's suggestion, Looked at Tools &gt;&gt; Options &gt;&gt; Debugging. There didn't seem to be anything checked relating to &quot;Managed or Native Compatibility Mode&quot;.</p>
  </li>
  </ul>
  <p><a href="https://i.stack.imgur.com/Q2lDT.png" rel="noreferrer"><img src="https://i.stack.imgur.com/Q2lDT.png" alt="tools&gt;&gt;options&gt;&gt;debugging" /></a></p>
  <ul>
  <li><strong>Blue Shell's answer had the solution!!!</strong> It was a matter of launching the visual studio installer, clicking Modify for my installation, going to &quot;Individual Components&quot; and checking &quot;.NET profiling tools&quot;</li>
  </ul>
  <p><a href="https://i.stack.imgur.com/hxxLC.png" rel="noreferrer"><img src="https://i.stack.imgur.com/hxxLC.png" alt="The solution" /></a></p>
  <p>The next step WOULD HAVE BEEN to uninstall VS 2022 and re-install it.</p>