![Image for screen saver for mac os sierra](https://kumkoniak.com/98.jpg)
If you want to follow along with a third party screen saver, find one you like from our screen saver archive posts, or grab something like this nice FlipClock screen saver which we’ve covered before, it’s free, and happens to be what we’re using in this tutorial. qtz files, which are screen savers made from Quarts Composer, and the traditional. Accordingly, we’ll cover the two basic methods for installing screen savers in Mac OS X, one through the Screen Saver folder, and another using a right-click, and also for both screen saver file formats. You’ve probably noticed by now that in newer versions of MacOS, including MacOS Mojave, Sierra, OS X Maverick, El Capitan, Yosemite, and onward, adding new screen savers to your Mac is no longer a simple matter of double-clicking the file as it once was, if you try that you’ll see the following error message about the file not being trusted and from an unknown developer:
![Image for screen saver for mac os sierra](https://kumkoniak.com/98.jpg)