IObit Toolbox is like a Swiss army knife, with more than 20 computer tools in one place, you have more than 20 powers to diagnose and fix PC problems, including cleaning, optimizing, repairing, security and fully control. IObit toolbox requires 0 installation. You can take it along with you in any portable devices, like flash disk, to solve PC problems anytime and anywhere. Also it eats little room in your disk. Each admin tool in IObit Toolbox is stand-alone and powerful.