It's nice to find the options to join or unjoin these metric gathering services, but Vista continues to run tasks to gather data anyway!! I've found the spot in Scheduled Tasks to disable the stuff for Customer Experience stat gathering. I've had this machine running Vista Home Premium 32 bit since April 2007 and I'm still turning stuff off that runs my HD!! If I look at Process Monitor there's all these File Open, File Close, File Create stuff going on for no reason. Sometimes my HD will run constantly for 15 or 20 minutes and that's with Superfetch service not running!! It's pretty annoying!
Some people say it doesn't hurt your drive to have it doing all this stuff I don't care about, but it sure trashes system buffers!!! How about optimizing for stuff I want to do? I mean, I'm the one that forked out the $$$ for this PC, you know? Seems like I'll still be hunting this stuff down when SP4 comes out!!
Since I mentioned turning those off I might as well describe how I did it:
To turn off
Consolidator and OptinNotification
Go into Task Scheduler(make sure in the View Menu click Show Hidden Tasks)
Task Scheduler Library => Microsoft => Windows => Customer Experience Improvement Program.
Right click Consolidator and click Disabled
Right click OptinNotification and click Disabled