Indeed. That's why I disabled mostly HP stuff, excluding the necessary drivers and panels. And I confused the HP Advisor with the HP Support Assistant. The Advisor is 100% useless (and I disabled it) but the Support Assistant is nice, it just does everything of relevant that those famous maintenance suites do (iolo, tuneup, etc) but in a better and more reliable way, besides being able to download and install the very latest drivers/firmwares/bios. It doesn't run any startup process/service, it adds some tasks to the Windows Task Scheduler.
Now that I am more experienced and have switched to 7 and have disabled many annoying windows services such as Last Access and many others my windows runs smooth as melted butter. So on occasion I use East-tech Eraser, Tune Up Utilities 2010, and CCleaner, any more than that would be overkill.
Many cleanup utilities causes more damage to the system, then the cleanup,.....but if I have to Choose I would definitely chose CCleaner.
CCleaner, ATF, MRU Blaster and Old Timer's TFC once a week. Never had a problem with CCleaner and registry. Always delete what it throws up in registry clean. Cavalier maybe but no problems yet... Have a copy of JV16 Power Tools but feel they've lost their way recently.
very good not only clean the usual suspects but clean all those Flash and reset my Chrome window sizes and can get rid of the java files too all in one place, just close your Chrome and done
I use TU 2009 daily while do a ccleaner once a week. Neither have given me any problems. I do wish it was still named crap cleaner though!
Registry and junk file cleaning is an arguable topic. I have been on both sides before but now prefer to stay in the middle CCleaner's registry cleaning feature is mild (not aggressive unlike some others) and therefore can be trusted for most users who like to use such tools. Otherwise, I wouldn't recommend doing registry cleaning - sometimes it causes more pain than what it solves. If you have jumped about trying such tools, you would come at one point in time and realize it...especially when things start to go wrong. Doing backups before you 'clean' the registry is one thing but many wouldn't do it. If in doubt, it's better to be safe than sorry.