Article ID: 121269, created on Apr 23, 2014, last review on May 6, 2014

  • Applies to:
  • Plesk 11.5 for Windows


Installation of Plesk components fails on the "Configuring MySQL Server" step.

The following error can be observed in autoinstaller log (the default location is C:\ParallelsInstaller\autoinstaller3.log):

Command "C:\Program Files (x86)\Parallels\Plesk\admin\bin\local_mysql_helper.exe" --repair-database-root-password failed
 with code 3.
Failed to change database user password: Execute C:\Program Files (x86)\Parallels\Plesk\MySQL\bin\mysql.exe --host=local
host --port=3306 --user=admin --password="****" mysql --execute="UPDATE mysql.user SET mysql.user.Password = PASSWORD('!437UoIqZx') WHERE mysql.user.User = 'admin' AND (mysql.user.Password = OLD_PASSWORD('****') OR mysql.user.Pa
ssword = PASSWORD('****')); FLUSH PRIVILEGES;" failed[1]: ERROR 1045 (28000): Access denied for user 'admin'@'localhost' (using password: YES)


The 3306 port is used by another instance of mysqld.exe process.


  1. Check the current state of port 3306:

    > netstat -aon | findstr 3306
    TCP               LISTENING       4440
    TCP               LISTENING       1912
    TCP    [::]:3306              [::]:0                 LISTENING       4440
  2. Determine the processes by their PID:

    > tasklist | findstr 4440
    mysqld.exe                    4440 Services                   0     16,936 K
    > tasklist | findstr 1912
    mysqld.exe                    1912 Services                   0     16,936 K
  3. Check running services (open services.msc) and stop redundant

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