I use Eusing Free Registry Cleaner and CCleaner (both up to date recent editions). Anything better?

I've read quite a few articles on registry cleaners and some say they are safe but others say the opposite.
So are registry cleaners really safe?
Thanks guys.
Y!Answers always gives me answers to computer stuffs =3

im just looking for cleaners to protect me from all sorts of stuff i would rather free stuff but if its heaps good i would like to know
i have trend micro and avast and cccleaner i did have AVG but i think thats is a waste all it does is just donwload updates and never finds stuff best free virus cleaner is avast trend micro is ok but it hasent piked up any viruses yet which is a bit sus ??? and i heard norton when it runs out puts viruses on your computer ???

Anyone give me some suggestions on registry cleaners that do their job time after time and that may work better than others?

Thank you.

Pc keeps freezin, slow, error messages, microsoft ie has encountred a problem, anyone know what i need to do?