To delete tag(s):
1. Navigate to Components-> .Mighty Resources-> Tags in the Joomla global menu. The Tags page appears and displays a list of existing tags.
2. Select the check box corresponding to the tag you want to delete. Click the Delete button  in the toolbar, as shown in the following figure:
3. Click the OK button in the confirmation message box.
The selected tag is deleted.
To delete more than one tag, select the check boxes corresponding to the tags, and click the Delete button in the toolbar.