CleanMyMac Classic Frequently Asked Questions

Feel free to poke around — we’ve got answers for common questions about activation, license, compatibility, upgrades, and more.

  • My activation number doesn’t work.

    First, check to make sure that you entered your activation number correctly — maybe you’ve accidentally copy & pasted it with spaces or other invisible symbols.

    If that doesn’t help, please contact us via contact support page.

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  • I want to activate my copy of CleanMyMac on another Mac.

    If you don’t have multiple licenses, you can only activate one copy of CleanMyMac Classic with your activation number. If you wish to purchase multiple license, see our answer below. In order to activate your copy on a different Mac, deactivate your copy of CleanMyMac Classic by uninstalling CleanMyMac Classic on your current Mac. Then, install CleanMyMac Classic on the Mac of your choosing. You can then activate your newly installed CleanMyMac Classic with your original activation number.

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  • Can I make my CleanMyMac Classic available to all users on my Mac?

    It already is! An activated copy of CleanMyMac Classic is fully functional for all users on your Mac. However, your activation info is tied to the initial user account, the one which you used to activate the application.

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  • I want to buy several CleanMyMac Classic licenses. Can I get a discount?

    Yes, multiple licenses are available for a discounted rate. You can either visit our store and use the 'Upgrade your License' feature located at the bottom, or email our Support Team for help with your purchase.

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  • I want to upgrade my CleanMyMac Classic license.
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  • Is CleanMyMac safe to use? What are the guarantees?

    CleanMyMac Classic is designed to clean up only the files that are not vital to your system. If you would like to know more about these types of files, please refer to this Knowledge Base article.

    However, CleanMyMac Classic only works on Mac operating systems 10.4-10.8, which Apple does not support anymore. The systems also do not receive updates anymore. As a result, CleanMyMac Classic and other apps that work on that systems may have problems. See this article for details.

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  • Is there a User Guide for CleanMyMac Сlassic?

    Yes, you can download it here.

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  • Why does CleanMyMac Classic pop up even if I don’t launch it?

    This is most likely related to the fact that the Automatic Application Uninstaller feature is enabled on your version of CleanMyMac Classic. This feature makes CleanMyMac Classic launch automatically when you trash any application or if there is already an app file located in the Trash when you try to remove other files.

    This feature can be easily disabled in the Advanced tab of the CleanMyMac Classic Preferences. Just uncheck the ‘Enable Automatic Application Uninstaller’ checkbox.

    This automatic popup behavior could also be related to the Automatic Device Cleanup feature or Trash Status Monitor. Both of these features can be found and disabled in CleanMyMac Classic’s Preferences.

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  • One of my apps became corrupted because of CleanMyMac Classic!
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  • How do I add languages to the list of "Languages to Keep?"

    The languages that are kept during cleaning, located in CleanMyMac Classic’s Preferences, are selected based on your Mac OS X System Preferences. Just go to the language settings in your System Preferences and add the languages you wish to keep there. They will then appear in the CleanMyMac Classic Preferences as well and you will be able to set these languages to be kept by the application.

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  • What are the limitations of CleanMyMac Classic’s Demo version?

    The free Demo version of CleanMyMac Classic is able to scan your Mac entirely but only allows you to clean 500 MB of unnecessary files.

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