Phil Bull
philbull@gmail.com 2011
Michael Hill
mdhillca@gmail.com 2011, 2014
Sort the list of processes by % CPU to see which application is using up the computer's resources.

# Which program is making the computer run slowly?

A program that is using more than its share of the CPU may slow down the whole computer. To find which process could be doing this:

Click the Processes tab.

Click the % CPU column header to sort the processes according to CPU use.

The arrow in the column header shows the sort direction; click again to reverse it. The arrow should point up.

The processes at the top of the list are using the highest percentage CPU. Once you identify which one might be using more resources than it should, you can decide whether to close the program itself, or close other programs to try to reduce the CPU load.

A process that has hung or crashed might use 100% CPU. If this happens you may need to kill the process.