How to update macOS for CleanMyMac 3

CleanMyMac 3 works on macOS 10.9 and higher. There are five operating systems that match CleanMyMac 3 system requirements: Mavericks (OS X 10.9), Yosemite (10.10), El Capitan (10.11), macOS Sierra (10.12), and macOS High Sierra (10.13). High Sierra is newer, free, and has more valuable features. Therefore, we highly suggest upgrading your Mac to macOS 10.13.

Check requirements for High Sierra

You can install High Sierra on one of the following Macs:

• iMac: late 2009 or newer
• MacBook: late 2009 or newer
• MacBook Pro: mid 2010 or newer
• MacBook Air: late 2010 or newer
• Mac mini: mid 2010 or newer
• Mac Pro: mid 2010 or newer

Also, note that your Mac must have at least 2 GB of RAM (preferably 4 GB) and 8 GB of free disk space on the drive. If you aren't sure about these numbers, let's check them right now.

Follow these steps to find out how much memory your Mac has:

1. Click on the Apple Menu icon in the upper-left corner of your screen.
2. Select About This Mac.

The amount of RAM you have is specified on the first tab, Overview. Just look at the Memory line and check if there's more than 2 GB. If not, you need to consider upgrading your RAM before installing a new operating system.

Now, let's check free disk space:

1. Click on the Apple Menu icon in the upper-left corner of your screen.
2. Select About This Mac.
3. Move to the Storage tab.

The amount of available space on your drive is specified right under its name. If you have more than 14.3GB, cool, you’re good to go.

Get your Mac upgraded to High Sierra

When you install your new OS, you have to restart a Mac. So, be sure to add this page as a bookmark before downloading and installing your new OS. That's what you need to do to add a bookmark :

• Safari: Press Command-D and then click Add. To load this page, click the menu button next two the two arrows on the left of the address bar and then select “Update your Mac OS for CleanMyMac 3 | MacPaw” from the menu that opens to the left.
• Chrome: Click the star on the right side of the address bar, or press Command-D and then click Done. To load the page, click Bookmarks in the menu bar and select “Update your Mac OS for CleanMyMac 3 | MacPaw.”
• Firefox: Press Command-D and then click Done. To load the page, click Bookmarks in the menu bar and select “Update your Mac OS for CleanMyMac 3 | MacPaw.”

Now that you’ve bookmarked this page, download macOS High Sierra from the App Store, follow the instructions, and then reboot your Mac. 

When your Mac is done installing your new macOS, load this web page and continue from the next section.

If you’d like to do a clean install of macOS High Sierra, check out this article; it’ll walk you through the entire process.

Upgrade to CleanMyMac 3

Now, you’ve upgraded your system, just click this link to head to the MacPaw Store and upgrade to CleanMyMac 3.