alphanumerics thanks, I added my system specs.
Saurabh: standard ahci 1.0 serial ATA controller- driver
provider: microsoft- driver date: 21/06/2006- driver version: 6.1.7601.17514- digital signer: microsoft windows
ATI I/O Communications Processor SMBus Controller- microsoft- 21/06/2006- version 6.1.7601.17514- digital signer: microsoft windows
USB Mass Storage Device- microsoft- 21/06/2006 - version 6.1.7601.17577- digital signer: microsoft windows
Broadcom NetLink (TM) Gigabit Ethernet- Broadcom - 6/08/2009 - version 18.104.22.168- digital signer: Microsoft Windows Hardware Compatibility Publisher
and the computer is always like this. before, it used to be first fast then after a while slow(when internet was reported by Norton to use lots of CPU), and sometimes it used to be fast the first minutes of using it. but now its always the same. its not that bad (or maybe Im used to it), but slow when playing games.