Admin ***** Move Data Directory =================== - Stop the MySQL database service. - Open the ``my.ini`` file in a text editor. :: C:\Program Files\MySQL\MySQL Server 5.1\my.ini - Make a note of the value of the ``datadir`` property. :: datadir="C:/Documents and Settings/All Users/Application Data/MySQL/MySQL Server 5.1/Data/" - Create a new folder to hold the MySQL data and update the ``datadir`` property in ``my.ini``: :: datadir="R:/mysql/data/" - **Copy the contents of the old data folder to the new data folder**. - Re-start the MySQL database service.