title: mysqld: Can't change dir to data. Server doesn't start
body: <p>I installed a MySQL server with installer and it started. After reboot I tried to start it again and get the error:</p>
  
  <pre><code>D:\Program Files\MySQL\MySQL Server 5.7\bin&gt;mysqld -u root -p
  mysqld: Can't change dir to 'D:\Program Files\MySQL\MySQL Server 5.7\data\'     (Errcode: 2 - No such file or directory)
  2015-11-17T08:30:18.822962Z 0 [Warning] TIMESTAMP with implicit DEFAULT     value is deprecated. Please use --explicit_defaults_for_timestamp server option     (see documentation for more details).
  2015-11-17T08:30:18.822962Z 0 [Warning] Insecure configuration for --secure-    file    -priv: Current value does not restrict location of generated files.     Consider setting it to a valid, non-empty path.
  2015-11-17T08:30:18.822962Z 0 [Note] mysqld (mysqld 5.7.9) starting as     process 1108 ...
  2015-11-17T08:30:18.838586Z 0 [Warning] Can't create test file D:\Program     Files\MySQL\MySQL Server 5.7\data\DESKTOP-RNBR3E8.lower-test
  2015-11-17T08:30:18.838586Z 0 [Warning] Can't create test file D:\Program     Files\MySQL\MySQL Server 5.7\data\DESKTOP-RNBR3E8.lower-test
  2015-11-17T08:30:18.838586Z 0 [ERROR] failed to set datadir to D:\Program     Files\MySQL\MySQL Server 5.7\data\
  2015-11-17T08:30:18.838586Z 0 [ERROR] Aborting
  
  
  2015-11-17T08:30:18.838586Z 0 [Note] Binlog end
  2015-11-17T08:30:18.838586Z 0 [Note] mysqld: Shutdown complete
  </code></pre>
  
  <p>I tried to reinstall MySQL.<br>
  <strong>UPDATE:</strong><br>
  When I run <code>mysqld -u root -p</code> as administrator, nothing happens.</p>