DO NOT run any registry cleaner!!!!!

Very Important

Do not run any type of registry cleaner. like CCleaner as mentioned above. I've been hacking the registry since 1995 and was employed by PC Tools and one of the products I gave technical support on was Registry Mechanic.

I can tell you that the registry stucture has changed dramatically with Windows7 and these registry cleaners don't understand the structure.

I recommend no one use any type of cleaner/optimizer/registry defragger untill these companies provide support for Windows7

Hi.
I have used CC Cleaner a couple of times now, and don't seem to have any issues.

I've used CCleaner for several years and have had NO problems with my registry. I love the program.

RegistryBooster by Uniblue Software is Windows 7 compatible both x86 & x64.

It's Microsoft Gold Certified also.

I've not had any issues with CCleaner either.

Thanks for the warning though, I will keep my eye open to potential problems and remember this warning.

I've been using CCleaner for over two years, and have had no problems. When using the registry cleaner function (or any registry cleaner), create a restore point first, then open the cleaner, check for problems, if any, back up the problems prior to deleting. Never delete the problems without backing up (it's described as "saving changes" in CCleaner). And keep the program updated, at least once a month it updates. Fortunately, I haven't had to use this function since I've been using Windows 7, but I use the other cleaning functions on a daily basis. It's one of the best free apps around.

From what I've seen so far is that most of the registry cleaners out there have now updated their software for windows 7. What do you base this information on other than your experience in that field? What tests have you run that supports your conclusion? I'm not knocking your word but with out any concrete evidence to support your theory how do we really know. I too have used Ccleaner and quite a few others and never had any problems. Like Catilley 1092 said, backup and save, make restore points in the event of a problem that should arise. I do thank you for your information. Again this is no attack on you personally but just some friendly constructive criticism.

The OP is three months old. Since then there have been two updates to Ccleaner. I am sure the last takes care of Windows 7. I must admit, referring to the OP, that I could not personally see any "dramatic changes "in the structure of the registry,
I do not use a registry cleaner too often, as I don't feel it makes any significant difference to the overall operation of the OS, to remove one or two superfluous entries. I prefer, once in a while, to manually look at the two software items, under Hkey_Current_User and HKEY_Local Machine, and remove any items there, which I have uninstalled but have not been cleaned .
But, on an original install, if the registry is examined, a user will see that Microsoft have been quite lazy and left a heap of Vista items sitting there. At that stage, I have, on countless occasions, run Ccleaner, without mishap. It removes a huge number of entries, without harm to the OS. (It is more than a hundred, but I don't have the exact figure to hand).
But anyone having problems (I would be interested in seeing a post about those. ) should keep in mind that Ccleaner is customisable and does a bit more that clean the registry. Perhaps the problems, if any, lie elsewhere?

See here:
http://www.piriform.com/ccleaner/features

I've been a long time CCleaner user from Win 95-98-XP and now Win7 and have had zero issues using it. Now other cleaners may be where some of the problems crop up but without further proof of how "bad" CCleaner is, I'm not at all afraid to use it every day.

Ahh yeah, I did think to look at the date of the OP. And a second look will show that the original post was made before I signed up with the w7forums. That was during the Windows 7 Beta days.