Reinstall wordpress

Please tell me how I can reinstall wordpress.
It says "You appear to have already installed WordPress. To reinstall please clear your old database tables first." when I open mydomain.com/wp-admin/install.php

Thanks!
dshrenikAsked:
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IroshaCommented:
Just backup your database, wipe the folder, re-install wordpress and restore the database.
should be fine.
dshrenikAuthor Commented:
Where can i find the database?
mjjdesignsCommented:
Generally your web host will provide software called phpMyAdmin through your control panel they provide.

That software will let you connect to the database using a graphical interface.  The normal table prefix for WordPress is wp_, so do the following:

1) Login to phpMyAdmin
2) Select the table that contains WordPress
3) Use the "Export" option to back it up to a .sql file, in case you need to restore it.
4) Check all the checkboxes for the tables that start with wp_
5) Use the "Drop" option at the bottom.

Once that's done, you'll be able to reinstall WordPress.

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