title: Apache shutdown unexpectedly
body: <p>I am using XAMPPS to host PHP files from my machine. I have recently installed XAMPPs but I am unable to start Apache service as port 80 is in use by PID 4 - NT Kernel &amp; System.</p>
  
  <p>I know by using a different port (such as port 8080 etc change in httpd.conf) will get to a workaround for this issue. However I need port 80 to be released by PID 4 process and allocated to Apache service. I have done that in the past but have forgotten the resolution steps over the time. Please help me fix it</p>
  
  <p>This is the error I am encountering while starting Apache</p>
  
  <pre><code>`11:19:52 AM  [Apache]  Error: Apache shutdown unexpectedly.`
  `11:19:52 AM  [Apache]  This may be due to a blocked port, missing dependencies,` 
  `11:19:52 AM  [Apache]  improper privileges, a crash, or a shutdown by another method.`
  `11:19:52 AM  [Apache]  Press the Logs button to view error logs and check`
  `11:19:52 AM  [Apache]  the Windows Event Viewer for more clues`
  `11:19:52 AM  [Apache]  If you need more help, copy and post this`
  `11:19:52 AM  [Apache]  entire log window on the forums`
  </code></pre>
  
  <p>Logs from apache error log file:</p>
  
  <pre><code>[Wed Jul 03 00:54:17.004882 2013] [mpm_winnt:notice] [pid 248:tid 240] AH00354: Child: Starting 150 worker threads.
  [Wed Jul 03 01:17:37.485351 2013] [mpm_winnt:notice] [pid 4200:tid 228] AH00428:    Parent: child process 248 exited with status 1073807364 -- Restarting.
  [Wed Jul 03 08:51:45.875976 2013] [ssl:warn] [pid 400:tid 228] AH01909: RSA certificate configured for www.example.com:443 does NOT include an ID which matches the server name
  [Wed Jul 03 08:51:46.188476 2013] [core:warn] [pid 400:tid 228] AH00098: pid file C:/xampp/apache/logs/httpd.pid overwritten -- Unclean shutdown of previous Apache run?
  [Wed Jul 03 08:51:46.844726 2013] [ssl:warn] [pid 400:tid 228] AH01909: RSA certificate configured for www.example.com:443 does NOT include an ID which matches the server name
  [Wed Jul 03 08:51:49.047851 2013] [mpm_winnt:notice] [pid 400:tid 228] AH00455: Apache/2.4.4 (Win32) OpenSSL/0.9.8y PHP/5.4.16 configured -- resuming normal operations
  [Wed Jul 03 08:51:49.047851 2013] [mpm_winnt:notice] [pid 400:tid 228] AH00456: Server built: Feb 23 2013 13:07:34
  [Wed Jul 03 08:51:49.047851 2013] [core:notice] [pid 400:tid 228] AH00094: Command line: 'c:\\xampp\\apache\\bin\\httpd.exe -d C:/xampp/apache
  [Wed Jul 03 08:51:49.063476 2013] [mpm_winnt:notice] [pid 400:tid 228] AH00418: Parent: Created child process 5384
  [Wed Jul 03 08:51:50.579101 2013] [ssl:warn] [pid 5384:tid 240] AH01909: RSA certificate configured for www.example.com:443 does NOT include an ID which matches the server name
  [Wed Jul 03 08:51:51.579101 2013] [ssl:warn] [pid 5384:tid 240] AH01909: RSA certificate configured for www.example.com:443 does NOT include an ID which matches the server name
  [Wed Jul 03 08:51:51.750976 2013] [mpm_winnt:notice] [pid 5384:tid 240] AH00354: Child: Starting 150 worker threads.
  </code></pre>
  
  <p>NOTE: I DO NOT HAVE IIS, WEB CLIENT, WORLD WIDE WEB SERVICE.</p>