Since deleting active plugins is not possible, deleting a plugin that is currently active requires deactivation before trying to delete it.

1. Login in to your MainWP Dashboard site
2. Go to the MainWP > Plugins > Manage Plugins page
3. In the Search Plugins option box
4. In the Status dropdown list, select Inactive option
5. Enter a name of the plugin that you want to delete (or leave blank to see all inactive plugins)
6. In the Select Sites box, select all your sites where you want to delete this plugin
7. Click the Show Plugins button
8. Search results will appear in a table
9. Select plugins/sites where you want to delete the plugin by selecting appropriate check-boxes
10. In the Bulk Actions menu
    1. Select the Delete option
    2. Click the Confirm button