If you have selected the 'Security' overview in the system settings, click on the 'Data protection' tab (instead of privacy) and then on 'Full hard disk access' in the overview on the left. Update April 2021: In newer versions of macOS and OnyX, the assignment of rights is a little different. pulls out of Finder ( ProgrammeFolder) place the OnyX symbol in the list on the right and activate the check mark.If the settings are locked, click on the lock at the bottom left and enter your password.Choose the one Privacy-Tab and then click on Accessibility in the list on the left.

Opens the System Settings and click on that Security-Field.Therefore, here are the corresponding instructions as a translation (procedure after installation): Despite the fact that the application itself can be used in German, the installation help is only available in English. Since OnyX accesses numerous functions and options of the operating system, the appropriate administrator rights are required. The first version measures only 1,2 MB while for example version 3.1.9 for Mac OS X 10.11 El Capitan is 33,1 MB. The size of the download also varies depending on the operating system from macOS X 10.2 (OnyX 1.3.1) to macOS 10.13 High Sierra (OnyX 3.4.4). You can find the download of the app at /en/onyx.html - Everything is described there in English and you can only switch to French, but once you have downloaded OnyX, it can automatically also be used in German. Even if it gets slower due to age, you can deactivate various effects and other unnecessary settings with OnyX in order to free up system performance. Whether settings and optimizations with regard to the file system, settings for effects, appearance and other behavior of individual applications or access to system aids such as memory management, network utility and color picker - there are many practical steps possible to use the Mac and your workflow on the machine can optimize. The free OnyX app from Titanium Software offers useful setup options on the Apple Mac without registration and without harmful or annoying additional software. Sir Apfelot recommendation: Clean up your Mac hard drive with CleanMyMac OnyX for Mac OS X and macOS

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