A common issue to various users using WordPress is the upload size limit.
The post will show you how to increase upload size limit.
This works with easyphp, phpmyadmin, mysql and apache setup in wordpress.org but will probably work with others.
1. Edit php.ini. You can find it here \apache\Apache2.2.11
2. Use Find tool and search for each of these separately and change
post_max_size = 8M
upload_max_filesize = 2M
max_execution_time = 30
memory_limit = 8M
post_max_size = 110M (see the sql statement filesize above)
upload_max_filesize = 110M
max_execution_time = 1000
memory_limit = 128M (based on RAM)
3. Edit my.ini, find it here, \mysql\my.ini
4. Use Find tool
max_allowed_packet = 110M
5. Restart Your server