Assuming you mean trust in MS in general and not in what the OS does: broken trust isn't easy to fix, and this tool indeed doesn't do much in that regard, but i

Assuming you mean trust in MS in general and not in what the OS does: broken trust isn't easy to fix, and this tool indeed doesn't do much in that regard, but it does fix some of the things which lead to the broken trust i.e. what the OS is doing.