title: Apache 2.4 Fails to install on Windows 10
body: <pre><code>Windows 10
  Apache 2.4-64 (httpd-2.4.27-Win64-VC15.zip)
  </code></pre>
  
  <p>I downloaded httpd-2.4.27-Win64-VC15.zip and unpacked it to c:Apache24</p>
  
  <p>I modified the httpd.conf file:</p>
  
  <pre><code>Listen *:80
  ServerName localhost:80
  
  cd \Apache24\bin
  
  httpd -k shutdown
  </code></pre>
  
  <p>response is:</p>
  
  <pre><code>The 'Apache2.4' service is not started
  
  httpd -k install
  </code></pre>
  
  <p>response is:</p>
  
  <pre><code>[Wed Aug 23 13:17:03.258023 2017] [mpm_winnt:error] [pid 1196:tid 412] AH00433: Apache2.4: Service is already installed.
  </code></pre>
  
  <p>At one point, Apache 2.4 was installed to a directory called c:\localhost and may have been improperly removed.</p>
  
  <p>I checked the services/processes, and killed the IIS server and there is no mention of an Apache 2.4 running. I also checked the startup folder, and there is no Apache 2.4</p>
  
  <p>It seems that Apache 2.4, or some other ghost process, that thinks Apache 2.4 is still running in the non-existing c:\localhost folder. I've rebooted the system, to no avail. Any idea how to diagnose this problem?</p>