Should I trust on registry cleaner software?

 Registry cleaners do more harm than good ! It's easier to manually take things out of the registry you no longer use. I've seen more people have problems with their units from using registry cleaners. Either find a good video to teach you or better yet have a Tech go through it with you. If you take out the wrong things, you'll have a mess. Best to just leave it alone.

its best not to use them. And there really is no evidnce that they do anything but potentially ruine your comptuer.