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For a definitive, although OS specific, answer, from Memory Usage Performance Guidelines: Wired Memory Wired memory (also called resident memory) stores kernel code and data structures that must never be paged out to disk. Applications, frameworks, and other user-level software cannot allocate wired memory. However, they can affect how much wired ...


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AppleCare often will provide help for locating a manual that will have the installation steps for free, so you could start there. If you wanted to DIY - here are some items to check: https://support.apple.com/en-us/HT204319 - lists the versions for OS shipped with various Mac https://support.apple.com/en-us/HT201300 - how to identify MacBook pro models ...



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