Hi R,
All of these utilities that claim to keep your system working fast, clean and in tip top shape are not good to have installed . . .
More times than not, they will cause more harm than good and sometimes can and will brick your system . . .
Microsoft half the time, don't know what will be in next months update, so how are these companies meant to stay ahead of the curve. All it takes is Microsoft to change a registry entry and that software does not realise it is meant to be there and problems cam occur
Trust Windows to keep itself up to date and responsive - if you really look at it, there is no real speed boost to be had by installing this type of Software !