This is correct, there should be no reason whatsoever to remove and re apply thermal paste once properly applied, further, continually removing and replacing the cpu heat sink not only weakens the springs, it runs the risk of damage to the cpu. You only need create a static charge or apply too much pressure once to cause irreparable damage.
The point about having to clean dust on the speakers is utter nonsense, while you should always keep things clean, it will not impair sound quality one iota.
As for using programs to clean the registry there are no "official" programs for Windows vista, Windows 7 nor 8. Microsoft, and any support worth his salt, will tell you most if not all are garbage and not needed, and many frequently damage program installs, driver configurations and generally fux PC’s. The ppl who produce these programs prey on the imagination and insecurity of less knowledgeable users . Anyone who thinks CC cleaner is fine should be shown all the messed up blank entries their registry now contains.
Op while you were obviously trying to help, its clear you do not know as much about system care as you believe, leave the thermal paste and third party registry programs well alone. Just yesterday I had to fix an install for someone that was screwed by Advanced System Care.
Most ordinary users with a post Vista OS need do nothing more than wipe their cabinet down once in a while to keep it clean, schedule a virus check once a week, ensure keyboard and mouse are clean and if competent, clean the inside of the case every 6 months, and regularly update drivers for newer hardware.
Oh and BTW “Rift” Trions last mmo launch went without a hitch launch day.

