If you've owned your Mac for quite a while, you may notice a slowdown in performance over time. A while back we gave you lots of ways to breathe new life into a dying Mac Pro. These tips may also apply to some other Mac models as well but if you're just looking for quick fixes when it comes to performance without altering hardware, verifying and repairing disk permissions can sometimes help.
Here's how to do it.
While this won't solve serious problems with a Mac, I have found it to speed up my past Macs when I was having issues with launching applications or just general overall slowness. If you're seeing performance issues, verifying and repairing permissions is definitely worth a try!