|Jetclean appears to be yet another one of those do-all computer optimization utilities. Sorry, but I have a very low opinion of such products.|
Among it's other claims it supposedly optimizes Windows memory management. What it actually does is interferes with the existing memory manager and generally makes a thorough mess of things. After it's activities the 37% (whatever it is supposed to mean) really doesn't mean very much at all. I won't try to explain it.
My advice would be to uninstall this product. It isn't helping.
Sorry if this post comes across as rather strong but these products really get to me.