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Delete an Older Version of MySQL

Before you install MySQL, uninstall any existing installations of MySQL and delete any existing files by following these steps:

1. Run the MySQL uninstallation from Add/Remove Program.
2. Delete the MySQL system schema files and directory that you entered during MySQL installation, such as the c:\MySQL Datafiles.
3. Delete the MySQL configuration file and directory which is located in the C:\Documents and Settings\All Users\Application Data\MySQL\.
4. Delete the MySQL installation directory which is typically located in the C:\Program Files\MySQL\.