I would like to do a re-installation of my existing Wordpress site. Why? I didn't set it up correctly ie a auto installation and subsequent upgrades seems to have been made within sub-folders . It's a mess but it does work.
So questions are:
- I have backed up the SQL database. Is there anything else I need the backup when I just use a the default theme?
- How do I start with a clean slate?
- Then I can do an auto install through my provider (Bluehost)
- The do I reinstall any plugins?
- Then do I restore the SQL database?
I would go in to your existing site and deactivate all of your plugins. You really don't need to do anything with your database at all. You can keep your wp-config.php file as it has all of the MySQL connection stuff you need.
Wipe your server clean of the old WP files, do an auto-install, and replace the new wp-config.php with your old one, and you should be fine. After that re-upload and re-activate your desired plugins. You need not restore the database...just keep the backup on file in case anything ever happens, and backup regularly as well!