Automatic Recovery of MyISAM table
myisam_recover_options is not a dynamic variable. It is among the startup options for MyISAM.

If you have set this option in my.cnf, mysqld must be restarted

Please restart mysqld with

# service mysql restart


or if you have Windows

C:\&gt; net stop mysql
C:\&gt; net start mysql


You should try switching your table to InnoDB and make your table crash-safe.