Turn Off Read-ahead optimization
What is Read-Ahead optimization ?
Read-ahead optimization was intended to speed up hard drive access.
If activated, Windows reads some blocks more that needed from the
HD and 'hopes' the program will need the data later.
It will work if you use only 1 application at once, but this is not
always the case.
As soon as 2 programs try to access the hard drive at the same time
reading will slow down things up to 50% !
In many cases DISABLING Read-ahead optimization will give your a huge
boost - just give it a try !
so go to "system properties" then "performance"
then "File System" in "Hard Disk" move the "read
ahead Optimization" to NONE (make a note of where it was incase
you want to put it back to the original settings) and thats it