After all, each of your friends running Windows does it. One of the most frequent tips for repairing sluggish Mac performance is to reinstall the operating system. For those who are just looking to boost their Mac’s performance, we have some good news: there are ways to ‘refresh' your computer. Any of the above don’t really justify the expense of buying a new Mac – unless, that is, you have already committed to the decision of upgrading. It could also just be because the hard drive is nearly full, or perhaps there’s a chance that you’re running an outdated operating system that isn't compatible with some of the apps you are using. Of course, the first and most obvious could simply be old age.
After being in use for a couple years, there are a few reasons why your Mac could be running slowly.
