registry cleaner

is there a really good registry cleaner that cleans the registrys that are left by unistalled programs? a real good one? and not those that will delete wrong things?

 

Ace Utilities has worked good for me.
RegSeeker has been good also.It's free.
They both have an "undo" or backup feature.

With any registry cleaner use the backup feature.
You may also want to backup your registry prior to using a registry cleaner.
With any registry cleaner problems are possible.

Both are thorough regarding uninstalled programs and traces left in the registry IMO.I don't know that they catch everything though.

Here's a link to Ace Utilities

http://www.acelogix.com/