Why won't my Mac shut down?

2015 iMac

Episode 1651

Angela from Dartmouth, Nova Scotia, Canada

Angela has a 2015 Mac and when she shuts it down, it turns back on. Leo says it's an incomplete shutdown, with some app hanging it up. A wipe and reinstall of the OS should make it go away. Make sure you backup your data first.

You can launch the activity monitor and it'll show you all the processes that are running.

Is the MacBook Air worth upgrading?

Apple MacBook Air

Episode 1540

Rob from Cincinnati, OH

Rob has a process in his Mac called "User Event Agent" and he doesn't know what that is. Is it necessary? Leo says it is. It just monitors all of his activity. This includes mouse key presses, typing, etc. If he were to stop it, his computer would become unresponsive. He shouldn't really get caught up with what he finds in the Task Manager, especially when the processor and RAM are being used.

Why does my computer start slowing down when I browse the internet? (Part 1)

Episode 911

Robert from Gilbert, AZ

Leo says that something is taking up a great deal of RAM and it's causing the computer to labor hard and slow down. "Services" are just things running in the background. He can examine what services are running to get an idea of what's slowing down his computer by right clicking on "My Computer", then click "Manage", and click the "Services" tab. This will show him a list of all the services that are running. Windows may also be indexing the computer at bad times.