title: MySQL shutdown unexpectedly
body: <p>I know this questions has been asked many times here, i searched it a lot and found various answers but still unable to solved my problem. </p>
  
  <p>Apache is running successfully on port 80, but when i try to start mysql, it gives me the following error message.</p>
  
  <pre><code>13:36:13  [mysql] Error: MySQL shutdown unexpectedly.
  13:36:13  [mysql] This may be due to a blocked port, missing dependencies, 
  13:36:13  [mysql] improper privileges, a crash, or a shutdown by another method.
  13:36:13  [mysql] Press the Logs button to view error logs and check
  13:36:13  [mysql] the Windows Event Viewer for more clues
  13:36:13  [mysql] If you need more help, copy and post this
  13:36:13  [mysql] entire log window on the forums
  </code></pre>
  
  <p>LogFile</p>
  
  <pre><code>140215 13:36:13 [Note] Plugin 'FEDERATED' is disabled.
  140215 13:36:13 InnoDB: The InnoDB memory heap is disabled
  140215 13:36:13 InnoDB: Mutexes and rw_locks use Windows interlocked functions
  140215 13:36:13 InnoDB: Compressed tables use zlib 1.2.3
  140215 13:36:13 InnoDB: Initializing buffer pool, size = 16.0M
  140215 13:36:13 InnoDB: Completed initialization of buffer pool
  InnoDB: Error: space header page consists of zero bytes in data file D:\xampp\mysql\data\ibdata1
  140215 13:36:13 InnoDB: Could not open or create data files.
  140215 13:36:13 InnoDB: If you tried to add new data files, and it failed here,
  140215 13:36:13 InnoDB: you should now edit innodb_data_file_path in my.cnf back
  140215 13:36:13 InnoDB: to what it was, and remove the new ibdata files InnoDB created
  140215 13:36:13 InnoDB: in this failed attempt. InnoDB only wrote those files full of
  140215 13:36:13 InnoDB: zeros, but did not yet use them in any way. But be careful: do not
  140215 13:36:13 InnoDB: remove old data files which contain your precious data!
  140215 13:36:13 [ERROR] Plugin 'InnoDB' init function returned error.
  140215 13:36:13 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
  140215 13:36:13 [ERROR] Unknown/unsupported storage engine: InnoDB
  140215 13:36:13 [ERROR] Aborting
  </code></pre>
  
  <p>Kindly guide me how to resolve this problem.</p>
  
  <p>Regards,
  Aftab</p>