Running Mysql Manually - user and world database table not found

[Abida Mukarram]

Hello,
I am running mysql on windows 8.1 in manual mode. I downloaded the world_innodb database. Also created a user using CREATE and GRANT with all privileges.
Was able to see and log this process. All three table COUNTRY, CITY, COUNTRYLANGUAGE were created. I exited mysql and restarted to find the following
problem. My user no longer existed (not coming up under show user also)
while SHOW Databases shows the database world and USE world works for the database, I get an error for SHOW tables.

Is this happening because of manual mode? Do I need to recreate users and tables everytime? I would appreciate your help. Thanks