# Comment the following if you are using InnoDB tables
skip-innodb
#innodb_data_home_dir = “C:/xampp/mysql/”
#innodb_data_file_path = ibdata1:10M:autoextend
#innodb_log_group_home_dir = “C:/xampp/mysql/”
#innodb_log_arch_dir = “C:/xampp/mysql/”
## You can set .._buffer_pool_size up to 50 – 80 %
## of RAM but beware of setting memory usage too high
#innodb_buffer_pool_size = 16M
#innodb_additional_mem_pool_size = 2M
## Set .._log_file_size to 25 % of buffer pool size
#innodb_log_file_size = 5M
#innodb_log_buffer_size = 8M
#innodb_flush_log_at_trx_commit = 1
#innodb_lock_wait_timeout = 50

Modify the lines and it should look like this:

# Comment the following if you are using InnoDB tables
#skip-innodb
innodb_data_home_dir = “C:/xampp/mysql/”
innodb_data_file_path = ibdata1:10M:autoextend
innodb_log_group_home_dir = “C:/xampp/mysql/”
innodb_log_arch_dir = “C:/xampp/mysql/”
## You can set .._buffer_pool_size up to 50 – 80 %
## of RAM but beware of setting memory usage too high
innodb_buffer_pool_size = 16M
innodb_additional_mem_pool_size = 2M
## Set .._log_file_size to 25 % of buffer pool size
innodb_log_file_size = 5M
innodb_log_buffer_size = 8M
innodb_flush_log_at_trx_commit = 1
innodb_lock_wait_timeout = 50

You can change the paremeters as you want, save it and then restart mysql service. To check wheter InnoDB is already enabled, go to Phpmyadmin page, point to Storage Engines menu and it should look like this:

Note:

If you have made changes as mentioned above but it still won’t work, try to locate my.ini file on WINDOWS directory, make the same changes on it and restart mysql. Sometimes during installation default my.cnf file will be copied into WINDOWS directory as my.ini and mysql uses it as default configuration file.