My computer makes me crazy! what to do ?

You can view the list of programs that are running in the background of your computer by opening Activity Monitor.

To stop a program from running, simply click on it and select Quit from the drop-down menu.

If you know you don’t need a specific program, but you want to keep it around for future use, click on Force Quit instead of Quit. This will prevent the app from launching when you reboot your device or start up again next time—but it won’t stop any child processes from launching automatically when you open them manually (more on this later).

You can also close all programs except one by selecting More Details and selecting Choose App For Selected Processes: In this case, you’ll be prompted to select an application for each process individually; choose another application here if necessary.