I've got a harddisk activity stronger than activity at bootup. It starts may
be half an hour after boot. - I can only stop it with reeboot.

Vista (Ultimate) is working normaly and fine exept of this harddisk activity
noise.
Activity is although when i am away! When i'm comming back it stops(!) for a
few seconds.

My Board: Asus P5B Intel Core Duo, SATA
CPU usage 2-4%
RAM (2GB) usage 18-20%

File Indexing i already switcht off.
And i stoppt programms in tray.
I dit install all Windows updates exept of language packs.