If your Mac acts like it needs a nap every afternoon, when you are at the height of multitasking, there is an easy way to see. Well, you're getting mine within seconds. Best Mac VPN 2021 by Rae Hodge Budget hack: Replace Netflix, Hulu and more with free subscriptions. Screenshot by Matt Elliott/CNET Find out which apps are resource hogs. I'll never know which settings had been causing the problems, but using the DEFAULT command brought my iMac back to its brand new condition. Confirmed: CNETs Gains Crapware Status (Updated). I just saw a command that said something like 'Restore all defaults,' so I chose it thinking that it could do no harm. Download Wrappers and Unwanted Software are pure evil. Even better, Onyx fixed the problems even though I had no idea of how to use it. They couldn't help me, either so, having nowhere else to go, I tried Onyx, and not only did those two problems disappear, but also another one that I had resigned myself to. CCleaner's simple and intuitive layout will appeal to users of all skill levels. I had had a couple of problems that they couldn't help me with, so I called Apple Care. CCleaner is one of the better ones for its ease of use and powerful cleaning capabilities. Anyway, I used Onyx WITHOUT THEIR PERMISSION, and it worked. I had assumed that Apple Support Communities would be against Onyx, because they are against everything that doesn't come from Apple, and they like to argue too much for my taste.