Norton Utilities registration .. $$?

So for many weeks I have used the Norton Utilities app to clean up my system files etc, before shutting down for the night. Sadly, I earlier today it was upgraded and I am now being asked for a registration key or some such thing. I was using a perfectly good free copy and I'd very much like that back! I do not appreciate being fooled into an unnecessary upgrade and expense. The cost for such is not clearly displayed, and I do not know the price. What the hell, Norton!  Money bags is not my middle name. :-) Thanks.