InvisionFree is a full-featured, customisable, forum-hosting program that allows you to create your own forum for free. There are no limits on the number of members and posts you can have while using your InvisionFree board. If you decide that you no longer want access to your forum, you can delete the account through your administrative control panel. Once you delete a forum, however, there is a chance that you may not be able to restore it in the future.
Visit your InvisionFree forum website, and log in to your administrative control panel.
Click the link "Account Info" under the InvisionFree Network section. Click the link "Delete Board" under the Account Information section.
Click "Delete Board" when asked to confirm your decision. Wait for a confirmation message to appear on the screen, stating that your board has been deleted and your admin control panel is inactive, before you navigate away from the Web page.