cck_my

Try follow the steps here:

XP: http://support.microsoft.com/kb/314848

Vista: http://windows.microsoft.com/en- ... ting-your-hard-disk

Win7: http://windows.microsoft.com/en- ... ting-your-hard-disk

or other tuning/disk defragment program/utility take over windows as default program, if problem still exist try to printscreen and post it here!