Whether you're switching platforms or cleaning up a test installation, here's how to completely remove WordPress from your hosting account.
Step 1: Backup First
Before removing WordPress, back up any content you want to keep. Export posts and pages via Tools > Export in WordPress. Download your uploads from wp-content/uploads via FTP or File Manager.
Step 2: Remove via Softaculous (Easiest)
If you installed via Softaculous, open it in cPanel, go to Installations, find your WordPress site, and click the Remove (trash) icon. Choose to also remove the database and data if you want a complete cleanup.
Step 2 (Manual): Delete Files and Database
Via File Manager, select all files in your WordPress directory and delete them. In MySQL Databases, delete the WordPress database and its user. This completely removes all WordPress data from the server.