my mac become very slow and the kooling fan making so much sound ..can any one help. plz?
Open the Activity Monitor
> Applications > Utilities > Activity Monitor.app
Select the %CPU tab (twice if necessary, so the little triangle/arrow is pointing downards).
What process is hogging up all the CPU?
Don't forget to change the control in the upper right corner from "My Processes" to "All Processes"
Retrieving data ...