Random Freezes

Hi all :)
I have a laptop Acer Aspire 7720G, with Win 7 RTM installed from original ISO ( by zuko.. ) to try it before purchase..but it randomly freezes for 30-40 secs : (
Mouse can move, keyboard works but if I try to open folders or other, they don't

I thought it could be a RAM problem, so I run a memtest.. but no errors..
Now dunno what to do xD I've reinstalled 2 times but there are always freezes..what can be the problem? maybe a bad ISO? or a bad burn?

Thank you all in advance for the help :)
And really really sorry if this is the wrong forum section xD

the hw in the specs is my desktop xD now I'm on the notebook Acer Aspire 7720G
with:
4GB ram
Core 2 Duo T7500 ( 2.2ghz )
ATI Mobility Radeon HD2600

Anyway thank you for the answer!! : ))

usasma said:

Check Task Manager (right click on the Task Bar or press Ctrl-Shift-Esc)
Select the Processes tab
Select the View menu item
Select the Select columns item
Put check marks next to I/O Reads and I/O Other - then click OK to exit
Resize the Task Manager window so you can see all columns
Wait for the mouse to lock up - do any of the Image Names show excessively high numbers in any of the columns?

Doing this passes, I had these results:



The first time


The second time, some days later.


ç_ç
Thank you in advance for the help

it could be driver problems. i have a Gainward GTS 250 and i have the same issue. i installed a bunch of nvidia drivers, even let the windows own driver and the problem still persists. even on a clean RTM install (first time this happened on RC 7100, both versions are x64) or you could wait the ISO from MSDN ^^. i know i m waiting :|

I also thought that was a Video driver problems, so I first tried with 7 own driver and then with ATI Catalyst 9.7..but no results ç_ç
Anyway let's wait for 6 August XD

I had some freezing issues until I updated my motherboard bios with latest version, then they went away

uhm could this works on a notebook? :O

just updated my BIOS and nothing new on the sky...