I run CCleaner on a regular basis simply because it simplifies and speeds up the task of removing accumulated junk by scanning system temp folders, browser caches, and other transient dumps in one operation. It is certainly a *lot* faster than Disk Cleanup in Windows, especially under WinXP.
FWIW, I also use the registry cleaner and I have never had that break anything.
I've been running CCleaner with Java excluded for over a year now. It's possible that current versions of Java store things differently and would not be bothered by CCleaner. It's equally possible that current versions of CCleaner are better behaved.
I also could not tell you right offhand if the problem happened under Win7, WinXP, or both. It's been long enough that I don't remember.
In any case, the new updater works fine. Other than having to reset some preferences once, I haven't had any issues. It seems a bit faster than the old one and runs reliably without throwing exceptions.
-= Therendil =-
__________________
|