first of all I should say I'm too Sensitive about my PC..
I found that some times On web or on windows..playing music or such a light work.. HDD getting work a lot for some second(I mean the HDD LED on case turn on completely) and at this time my system completely freeze..just for 2 or 3 second..and then the LED lighting in normal way..and every thing get OK
it happen frequently..
it doesn't have any bother..and I check everything...everything is OK but I want to sure about it..
is there any problem with this?
is there any solution?
I mean, we need technical info about your system: cpu ram,... So far we can only guess that you have not much ram and the system needs to swap some files to disk to free some ram for the media caching.