How do I uninstall Plus HD 4.6 from my computer (Windows 8) on Chrome? It causes many annoying ads and has more cons than pros.
Try using Revo Uninstaller. Even if it can't uninstall the application normally, it will force it to uninstall by wiping out all traces of its presence from the system.
After that, try running AdwCleaner to make sure that there are no leftover rogue registry keys or toolbars in your system.