Hi all,
I might as well make my first post on here about what can be a contentious issue.
I have just finished building my first computer running Windows 7, prior to that I have only ever used XP, apart from various Linux distributions inside a VM.
When I first started with computers I came across the question of whether or not to use registry cleaners and after much reading I decided to give it a try making sure that before I removed a single key the registry was backed up with Erunt and I made another backup with the cleaning software.
With each program I used after a few days I usually had a short list of excluded keys, since then the only backups I have made have been with Erunt on a daily basis, I have never had a problem from running a registry cleaner.
I am following the same practice with Windows 7 and the only difference so far is that I have not had to exclude anything in any of the programs I have used, they are: CCleaner - Glary Utilities Pro - jv16 PowerTools 2011 - TUU 2007 (I have licenses for every version through to 2011 and still prefer 2007) - Wise Registry Cleaner v6 (Tried v7 once and went back to v6).
When I get around to buying a license for it there will be one more, Registry First Aid. (My present copy is x86 only.)
Why so many?
Because in my experience they do not all find the same things, there are also differences in other parts of the 3 utility programs.
Would I recommend the use of a registry cleaner to others?
Only with a very clear warning to always make a backup first.
If I was limited to one program which would it be?
If it was a utility program it would be jv16, if it was a registry only program it would be RFA.
Where RFA is concerned there are two other reasons why I would recommend it, it has a very good registry defrag tool (in the last few months since my old PC died I have been using a Netbook and after about a month of full-time use it gets noticeably slower, defragging the registry sorts it out).
But the main reason is its ability to 'edit' registry keys and not simply remove them.
A couple of years ago I moved several GB of programs and files from the system partition on my old PC to a non-system partition. RFA picked up the new locations and edited the keys, I never had to reinstall anything and I never had any problems.
Putting any software on a computer you should have at least a basic idea of what it can do, the thing about registry cleaners is that if they do cause problems they can be worse problems than most other types of software cause.