Windows 7: How much do you trust registry cleaners?

I ran ccleaner today due to my normal cleanup routine, then i went ahead and ran the registry cleaner, it had detected 224 problems thats alot, i didnt clicked on the fix issue yet because i want to hear what the experts would say so should i go ahead and run it or just leave it as it be

Random ones online...not much at all. CCleaner...very much so. I've used it for years on dozens of computers without issue. It's default settings aren't very in-depth, so you have little to fear. If you are worried, say yes to the backup option when you decide to clean, but I have yet to ever need to revert back from the clean. It has helped me solve many weird issues, though.

Ok got backup and ran it hmm nothing so i guess its fine thank you for the answer

Dont recommend using a registry cleaner of any kind. I just use ccleaner for temp files and such as the Vista/7 registries take care of themselves. And when your computer is at idle long enough, it will even start to defrag by itself.

Did you use the backup option that Ccleaner gives.

0%, not even CCleaner's. I used to use Registry Cleaners and it slowed my netbook down even more.

RegCleaners in Windows 7 are completely counterproductive. At best they have no effect at all. Else you can really put your system on the blink.

+1 CCleaner, never caused an issue...

Dont trust them at all. If I really want to clean my registry, before I install anything I take a manual restore point, then if I don't like the program I do a system restore. Virtually no application or game cleans up after itself. If I think my registry is becoming messy, I'll restore off a system image, rather than using registry cleaners.

It would be great if this were true...but sadly, it isn't. That's why such tools are needed.
I can think of plenty of situations in which CCleaner helped me out. The best example I give is with uninstalling ATI drivers, back when I had a Radeon 4850. Even Driver Cleaner said my system was clean, but I couldn't get the newer version to install. CCLeaner found a bunch of ATI reg entries leftover and removed them. Once that completed, I put my new drivers on and ran just fine. It's also helped me remove leftover bits from malware infections.