Got a harddisk problem!! need some help!! plz!!

[nikkung]

My harddisk is keep working, although I do nothing. Even I close all applications, it still running and cause my computer work very slow.
I don't really know what happen with my computer. If anybody know how to fix it, please tell me.

thanks you!!

 

[halo71]

Please post more details!! Like anything strange happen lately, recent downloads, hardware changes, do you run a firewall, virus protection, system specs etc. etc.

 

[OGGBoy]

check task manager and take notice of the CPU%. Is it close to or at 100%?
click on the processes tab and sort by CPU in descending order. Is there a process that is using a lot of the CPU?