Well that's a new look at it, at least for me.
I use Win 7 (very similar to Vista!) and as said here before, I had the noise coming from my HDD. Today I don't bother anymore! I know it's not damaging anything.
About P8 or PPro I rest my case!
Have a nice day.
See you around here.
Cris  :)

"'you shut up!  or I'll bring democracy to your country! "
Cris Galvão aka Softcris  - www.crisgalvao.com
(or softcris, SoftCris)
Rendering since 1997 and
at Renderosity since 1999.
OS Win 8.1     64 bit